Well, let's focus on what you don't have at common in blue.
There's no put-on-top-of-library removal, although there are a couple pieces of bounce.
There's no instant or sorcery recursion.
Maybe you could put an uncounterable creature in there? That's technically more green but blue can always get "can't be countered", can't it? Another prowess creature so you could maybe a little build that deck in Limited?
Wavecraft Student - Good. I mean, the card's not very good, but the design is pleasing.
Flutter - An excellent and flavorful combat trick. Feels like Applied Biomancy.
Vanish - Fine. Pretty strong if chanted, that's a lot of tempo for a low cost. Chant is cipher and rebound's baby, huh? Well it probably plays better than cipher, at any rate.
Wisdom Elixir - Another fairly strong chant for the rarity. Constructed-able?
Sink Into Silence - Good name.
Wavestep Xia - I think this exact execution of unblockability is black, not blue?
Zhiwan Bay Jelly - Sure.
Lightfoot - Another sure. When prowess was evergreen (and I do hope it's still deciduous) R&D was reticent to have abilities that granted it, and I'm not sure why.
Hummingbird's Advice - Could that first mode be draw two/discard two? As is UU to loot is a really, really bad rate - I know modal costs a premium but the other two effects are ~one mana effects but the first mode is worth much less than one mana.
Tengshe - Someone wants to play control in Limited, huh? I'm not sure a tengshe could be described as a "Bird Fish" but you do you.
Scrolls of the Ages - Dragon tribal in blue? That's unusual. Also, there seems to be an exceptional amount of card draw at common.
Heavenly Protection - This feels good.
Mirrorthrower Liang - I'm sure you know this is very very strong in Limited. Double colored cost helps that.
Liang Hierolune - Great name.
Torrential Bixi - Hold up, is this a Nine Sons of the Dragon theme?? Beautiful.
Waveshaping - More good tempo for Limited. I sense how blue would play.
Become Carp - Hilarious flavor. Effect seems fun also.
Rustwing Falcon - I like having this in Limited environments quite a lot. Makes me wish for a toughness matters theme, lol.
Humble Cultivation - Okay. Almost feels more blue. Or even green. But white getting it is fine.
Sealkeeper - Sure. I guess I will have to see what kind of enchants are in this Limited before I try to figure out how pickable it is.
Serene Shelter - The untap mode seems quite bad compared to the others. Untap and +1/+0? Or is that out of flavor?
Carp Painter - Not getting the flavor unless it made Fish tokens.
Daoling Archivist - Sure, very useful Limited control tool for the early game.
For All Under Heaven - Now we're really getting that ancient China flavor, huh? Kicker cost seems overcosted by 1; five is expensive for any combat trick. Or is that just a relic of bless?
Vanara Pathwarden - Sure, I love Fan Bearer and friends. Pretty sure I have this same card in Mercadian Mysteries as a 1/3.
Wushu Swordsman - Ahh, there's the enchantment keyword. Interesting take on bestow which I think is better to play with (and I love bestow) for the simple fact of not having to frontload the cost.
Beckon Through the Gates - Windmill slam design perfection. I love that kicked effect so, so much.
Tiger Shifu - The "Shifu" in the name is throwing me off; why the hell is something that I assume to be the ghost of a nonsapient tiger teaching me? Although hey, it's JttW, talking animals abound. Fine for supporting inherit.
Xiyin Monk - Feels quite beefy for a Human but hey, it's a Monk, martial arts masters can have unnaturally high p/t. Seems reasonable although I don't get the name of the enchantment half.
Nurturing Crane - Name makes this seem like it should have first strike to block with, not attack with.
Nightingales Help - I do wish this were in a set with heroic. Otherwise like the flavor and effect. Really great reward at common for going wide in Limited.
Windtamer Training - What a great Limited Aura. I just dig this, flavor and effect both.
Daoling Falconer - More strong stuff in Limited. I like.
Summoned to Court - "into its owner's library second from the top"? Flavor is perfect.
Qilin Advisor - This does exactly what I'd expect it to. Fine. 4W too much to ask for a poor little Limited player like me?
Marble Heroine - Give it the Soldier type (or even Warrior?) and it's perfect.
Fuller comments later. But two things: sad you dropped bless but I'm sure you have good reason for that; and sorry you got (sorta) jumped on potential with adapt in RNA.
There's no put-on-top-of-library removal, although there are a couple pieces of bounce.
There's no instant or sorcery recursion.
Maybe you could put an uncounterable creature in there? That's technically more green but blue can always get "can't be countered", can't it? Another prowess creature so you could maybe a little build that deck in Limited?
I̟̥͍̠ͅn̩͉̣͍̬͚ͅ ̬̬͖t̯̹̞̺͖͓̯̤h̘͍̬e͙̯͈̖̼̮ ̭̬f̺̲̲̪i͙͉̟̩̰r̪̝͚͈̝̥͍̝̲s̼̻͇̘̳͔ͅt̲̺̳̗̜̪̙ ̳̺̥̻͚̗ͅm̜̜̟̰͈͓͎͇o̝̖̮̝͇m̯̻̞̼̫̗͓̤e̩̯̬̮̩n͎̱̪̲̹͖t͇̖s̰̮ͅ,̤̲͙̻̭̻̯̹̰ ̖t̫̙̺̯͖͚̯ͅh͙̯̦̳̗̰̟e͖̪͉̼̯ ̪͕g̞̣͔a̗̦t̬̬͓͙̫̖̭̻e̩̻̯ ̜̖̦̖̤̭͙̬t̞̹̥̪͎͉ͅo͕͚͍͇̲͇͓̺ ̭̬͙͈̣̻t͈͍͙͓̫̖͙̩h̪̬̖̙e̗͈ ̗̬̟̞̺̤͉̯ͅa̦̯͚̙̜̮f͉͙̲̣̞̼t̪̤̞̣͚e̲͉̳̥r͇̪̙͚͓l̥̞̞͎̹̯̹ͅi͓̬f̮̥̬̞͈ͅe͎ ̟̩̤̳̠̯̩̯o̮̘̲p̟͚̣̞͉͓e͍̩̣n͔̼͕͚̜e̬̱d̼̘͎̖̹͍̮̠,͖̺̭̱̮ ̣̲͖̬̪̭̥a̪͚n̟̲̝̤̤̞̗d̘̱̗͇̮͕̳͕͔ ͖̞͉͎t̹̙͎h̰̱͉̗e̪̞̱̝̹̩ͅ ̠̱̩̭̦p̯̙e͓o̳͚̰̯̺̱̰͔̘p̬͎̱̣̼̩͇l̗̟̖͚̠e̱͉͔̱̦̬̟̙ ̖͚̪͔̼̦w̺̖̤̱e͖̗̻̦͓̖̘̜r̭̥e͔̹̫̱͕̦̰͕ ̗͔̠p̠̗͍͍̱̳̠r̰͔͎̰o͉̥͓̰͚̥s̟͚̹̱͔̣t͉̙̳̖͖̪̮r̥̘̥͙̹a͉̟̫̟̳̠̟̭t͈̜̰͈͎e̞̣̭̲̬ ͚̗̯̟͙i͍͖̰̘̦͖͉ṇ̮̻̯̦̲̩͍ ̦̮͚̫̤t͉͖̫͕ͅͅh͙̮̻̘̣̮̼e͕̺ ͙l͕̠͎̰̥i̲͓͉̲g̫̳̟͈͇̖h̠̦̖t͓̯͎̗ ̳̪̘̟̙̩̦o̫̲f̙͔̰̙̠ ̹̪̗͇̯t͖̼̼͉͖̬h̹͇̩e͚̖̺̤͉̹͕̪ ͚͓̭̝̺G͎̗̯̩o̫̯̮̟̮̳̘d̜̲͙̠-̩̳̯̲̗̜P̹̘̥͉̝h͍͈̗̖̝ͅa͍̗̮̼̗r̜̖͇̙̺a̭̺͔̞̳͈o̪̣͓̯̬͙̯̰̗h̖̦͈̥̯͔.͇̣̙̝
Wavecraft Student - Good. I mean, the card's not very good, but the design is pleasing.
Flutter - An excellent and flavorful combat trick. Feels like Applied Biomancy.
Vanish - Fine. Pretty strong if chanted, that's a lot of tempo for a low cost. Chant is cipher and rebound's baby, huh? Well it probably plays better than cipher, at any rate.
Wisdom Elixir - Another fairly strong chant for the rarity. Constructed-able?
Sink Into Silence - Good name.
Wavestep Xia - I think this exact execution of unblockability is black, not blue?
Zhiwan Bay Jelly - Sure.
Lightfoot - Another sure. When prowess was evergreen (and I do hope it's still deciduous) R&D was reticent to have abilities that granted it, and I'm not sure why.
Hummingbird's Advice - Could that first mode be draw two/discard two? As is UU to loot is a really, really bad rate - I know modal costs a premium but the other two effects are ~one mana effects but the first mode is worth much less than one mana.
Tengshe - Someone wants to play control in Limited, huh? I'm not sure a tengshe could be described as a "Bird Fish" but you do you.
Scrolls of the Ages - Dragon tribal in blue? That's unusual. Also, there seems to be an exceptional amount of card draw at common.
Heavenly Protection - This feels good.
Mirrorthrower Liang - I'm sure you know this is very very strong in Limited. Double colored cost helps that.
Liang Hierolune - Great name.
Torrential Bixi - Hold up, is this a Nine Sons of the Dragon theme?? Beautiful.
Waveshaping - More good tempo for Limited. I sense how blue would play.
Become Carp - Hilarious flavor. Effect seems fun also.
Cranewing Liang - Functional reprints deserve good flavor like this.
Enhanced Awareness - Is this card necessary with all the other draw?
I̟̥͍̠ͅn̩͉̣͍̬͚ͅ ̬̬͖t̯̹̞̺͖͓̯̤h̘͍̬e͙̯͈̖̼̮ ̭̬f̺̲̲̪i͙͉̟̩̰r̪̝͚͈̝̥͍̝̲s̼̻͇̘̳͔ͅt̲̺̳̗̜̪̙ ̳̺̥̻͚̗ͅm̜̜̟̰͈͓͎͇o̝̖̮̝͇m̯̻̞̼̫̗͓̤e̩̯̬̮̩n͎̱̪̲̹͖t͇̖s̰̮ͅ,̤̲͙̻̭̻̯̹̰ ̖t̫̙̺̯͖͚̯ͅh͙̯̦̳̗̰̟e͖̪͉̼̯ ̪͕g̞̣͔a̗̦t̬̬͓͙̫̖̭̻e̩̻̯ ̜̖̦̖̤̭͙̬t̞̹̥̪͎͉ͅo͕͚͍͇̲͇͓̺ ̭̬͙͈̣̻t͈͍͙͓̫̖͙̩h̪̬̖̙e̗͈ ̗̬̟̞̺̤͉̯ͅa̦̯͚̙̜̮f͉͙̲̣̞̼t̪̤̞̣͚e̲͉̳̥r͇̪̙͚͓l̥̞̞͎̹̯̹ͅi͓̬f̮̥̬̞͈ͅe͎ ̟̩̤̳̠̯̩̯o̮̘̲p̟͚̣̞͉͓e͍̩̣n͔̼͕͚̜e̬̱d̼̘͎̖̹͍̮̠,͖̺̭̱̮ ̣̲͖̬̪̭̥a̪͚n̟̲̝̤̤̞̗d̘̱̗͇̮͕̳͕͔ ͖̞͉͎t̹̙͎h̰̱͉̗e̪̞̱̝̹̩ͅ ̠̱̩̭̦p̯̙e͓o̳͚̰̯̺̱̰͔̘p̬͎̱̣̼̩͇l̗̟̖͚̠e̱͉͔̱̦̬̟̙ ̖͚̪͔̼̦w̺̖̤̱e͖̗̻̦͓̖̘̜r̭̥e͔̹̫̱͕̦̰͕ ̗͔̠p̠̗͍͍̱̳̠r̰͔͎̰o͉̥͓̰͚̥s̟͚̹̱͔̣t͉̙̳̖͖̪̮r̥̘̥͙̹a͉̟̫̟̳̠̟̭t͈̜̰͈͎e̞̣̭̲̬ ͚̗̯̟͙i͍͖̰̘̦͖͉ṇ̮̻̯̦̲̩͍ ̦̮͚̫̤t͉͖̫͕ͅͅh͙̮̻̘̣̮̼e͕̺ ͙l͕̠͎̰̥i̲͓͉̲g̫̳̟͈͇̖h̠̦̖t͓̯͎̗ ̳̪̘̟̙̩̦o̫̲f̙͔̰̙̠ ̹̪̗͇̯t͖̼̼͉͖̬h̹͇̩e͚̖̺̤͉̹͕̪ ͚͓̭̝̺G͎̗̯̩o̫̯̮̟̮̳̘d̜̲͙̠-̩̳̯̲̗̜P̹̘̥͉̝h͍͈̗̖̝ͅa͍̗̮̼̗r̜̖͇̙̺a̭̺͔̞̳͈o̪̣͓̯̬͙̯̰̗h̖̦͈̥̯͔.͇̣̙̝
Rustwing Falcon - I like having this in Limited environments quite a lot. Makes me wish for a toughness matters theme, lol.
Humble Cultivation - Okay. Almost feels more blue. Or even green. But white getting it is fine.
Sealkeeper - Sure. I guess I will have to see what kind of enchants are in this Limited before I try to figure out how pickable it is.
Serene Shelter - The untap mode seems quite bad compared to the others. Untap and +1/+0? Or is that out of flavor?
Carp Painter - Not getting the flavor unless it made Fish tokens.
Daoling Archivist - Sure, very useful Limited control tool for the early game.
For All Under Heaven - Now we're really getting that ancient China flavor, huh? Kicker cost seems overcosted by 1; five is expensive for any combat trick. Or is that just a relic of bless?
Vanara Pathwarden - Sure, I love Fan Bearer and friends. Pretty sure I have this same card in Mercadian Mysteries as a 1/3.
Wushu Swordsman - Ahh, there's the enchantment keyword. Interesting take on bestow which I think is better to play with (and I love bestow) for the simple fact of not having to frontload the cost.
Beckon Through the Gates - Windmill slam design perfection. I love that kicked effect so, so much.
Tiger Shifu - The "Shifu" in the name is throwing me off; why the hell is something that I assume to be the ghost of a nonsapient tiger teaching me? Although hey, it's JttW, talking animals abound. Fine for supporting inherit.
Xiyin Monk - Feels quite beefy for a Human but hey, it's a Monk, martial arts masters can have unnaturally high p/t. Seems reasonable although I don't get the name of the enchantment half.
Nurturing Crane - Name makes this seem like it should have first strike to block with, not attack with.
Nightingales Help - I do wish this were in a set with heroic. Otherwise like the flavor and effect. Really great reward at common for going wide in Limited.
Windtamer Training - What a great Limited Aura. I just dig this, flavor and effect both.
Daoling Falconer - More strong stuff in Limited. I like.
Summoned to Court - "into its owner's library second from the top"? Flavor is perfect.
Qilin Advisor - This does exactly what I'd expect it to. Fine. 4W too much to ask for a poor little Limited player like me?
Marble Heroine - Give it the Soldier type (or even Warrior?) and it's perfect.
I̟̥͍̠ͅn̩͉̣͍̬͚ͅ ̬̬͖t̯̹̞̺͖͓̯̤h̘͍̬e͙̯͈̖̼̮ ̭̬f̺̲̲̪i͙͉̟̩̰r̪̝͚͈̝̥͍̝̲s̼̻͇̘̳͔ͅt̲̺̳̗̜̪̙ ̳̺̥̻͚̗ͅm̜̜̟̰͈͓͎͇o̝̖̮̝͇m̯̻̞̼̫̗͓̤e̩̯̬̮̩n͎̱̪̲̹͖t͇̖s̰̮ͅ,̤̲͙̻̭̻̯̹̰ ̖t̫̙̺̯͖͚̯ͅh͙̯̦̳̗̰̟e͖̪͉̼̯ ̪͕g̞̣͔a̗̦t̬̬͓͙̫̖̭̻e̩̻̯ ̜̖̦̖̤̭͙̬t̞̹̥̪͎͉ͅo͕͚͍͇̲͇͓̺ ̭̬͙͈̣̻t͈͍͙͓̫̖͙̩h̪̬̖̙e̗͈ ̗̬̟̞̺̤͉̯ͅa̦̯͚̙̜̮f͉͙̲̣̞̼t̪̤̞̣͚e̲͉̳̥r͇̪̙͚͓l̥̞̞͎̹̯̹ͅi͓̬f̮̥̬̞͈ͅe͎ ̟̩̤̳̠̯̩̯o̮̘̲p̟͚̣̞͉͓e͍̩̣n͔̼͕͚̜e̬̱d̼̘͎̖̹͍̮̠,͖̺̭̱̮ ̣̲͖̬̪̭̥a̪͚n̟̲̝̤̤̞̗d̘̱̗͇̮͕̳͕͔ ͖̞͉͎t̹̙͎h̰̱͉̗e̪̞̱̝̹̩ͅ ̠̱̩̭̦p̯̙e͓o̳͚̰̯̺̱̰͔̘p̬͎̱̣̼̩͇l̗̟̖͚̠e̱͉͔̱̦̬̟̙ ̖͚̪͔̼̦w̺̖̤̱e͖̗̻̦͓̖̘̜r̭̥e͔̹̫̱͕̦̰͕ ̗͔̠p̠̗͍͍̱̳̠r̰͔͎̰o͉̥͓̰͚̥s̟͚̹̱͔̣t͉̙̳̖͖̪̮r̥̘̥͙̹a͉̟̫̟̳̠̟̭t͈̜̰͈͎e̞̣̭̲̬ ͚̗̯̟͙i͍͖̰̘̦͖͉ṇ̮̻̯̦̲̩͍ ̦̮͚̫̤t͉͖̫͕ͅͅh͙̮̻̘̣̮̼e͕̺ ͙l͕̠͎̰̥i̲͓͉̲g̫̳̟͈͇̖h̠̦̖t͓̯͎̗ ̳̪̘̟̙̩̦o̫̲f̙͔̰̙̠ ̹̪̗͇̯t͖̼̼͉͖̬h̹͇̩e͚̖̺̤͉̹͕̪ ͚͓̭̝̺G͎̗̯̩o̫̯̮̟̮̳̘d̜̲͙̠-̩̳̯̲̗̜P̹̘̥͉̝h͍͈̗̖̝ͅa͍̗̮̼̗r̜̖͇̙̺a̭̺͔̞̳͈o̪̣͓̯̬͙̯̰̗h̖̦͈̥̯͔.͇̣̙̝
Fuller comments later. But two things: sad you dropped bless but I'm sure you have good reason for that; and sorry you got (sorta) jumped on potential with adapt in RNA.
I̟̥͍̠ͅn̩͉̣͍̬͚ͅ ̬̬͖t̯̹̞̺͖͓̯̤h̘͍̬e͙̯͈̖̼̮ ̭̬f̺̲̲̪i͙͉̟̩̰r̪̝͚͈̝̥͍̝̲s̼̻͇̘̳͔ͅt̲̺̳̗̜̪̙ ̳̺̥̻͚̗ͅm̜̜̟̰͈͓͎͇o̝̖̮̝͇m̯̻̞̼̫̗͓̤e̩̯̬̮̩n͎̱̪̲̹͖t͇̖s̰̮ͅ,̤̲͙̻̭̻̯̹̰ ̖t̫̙̺̯͖͚̯ͅh͙̯̦̳̗̰̟e͖̪͉̼̯ ̪͕g̞̣͔a̗̦t̬̬͓͙̫̖̭̻e̩̻̯ ̜̖̦̖̤̭͙̬t̞̹̥̪͎͉ͅo͕͚͍͇̲͇͓̺ ̭̬͙͈̣̻t͈͍͙͓̫̖͙̩h̪̬̖̙e̗͈ ̗̬̟̞̺̤͉̯ͅa̦̯͚̙̜̮f͉͙̲̣̞̼t̪̤̞̣͚e̲͉̳̥r͇̪̙͚͓l̥̞̞͎̹̯̹ͅi͓̬f̮̥̬̞͈ͅe͎ ̟̩̤̳̠̯̩̯o̮̘̲p̟͚̣̞͉͓e͍̩̣n͔̼͕͚̜e̬̱d̼̘͎̖̹͍̮̠,͖̺̭̱̮ ̣̲͖̬̪̭̥a̪͚n̟̲̝̤̤̞̗d̘̱̗͇̮͕̳͕͔ ͖̞͉͎t̹̙͎h̰̱͉̗e̪̞̱̝̹̩ͅ ̠̱̩̭̦p̯̙e͓o̳͚̰̯̺̱̰͔̘p̬͎̱̣̼̩͇l̗̟̖͚̠e̱͉͔̱̦̬̟̙ ̖͚̪͔̼̦w̺̖̤̱e͖̗̻̦͓̖̘̜r̭̥e͔̹̫̱͕̦̰͕ ̗͔̠p̠̗͍͍̱̳̠r̰͔͎̰o͉̥͓̰͚̥s̟͚̹̱͔̣t͉̙̳̖͖̪̮r̥̘̥͙̹a͉̟̫̟̳̠̟̭t͈̜̰͈͎e̞̣̭̲̬ ͚̗̯̟͙i͍͖̰̘̦͖͉ṇ̮̻̯̦̲̩͍ ̦̮͚̫̤t͉͖̫͕ͅͅh͙̮̻̘̣̮̼e͕̺ ͙l͕̠͎̰̥i̲͓͉̲g̫̳̟͈͇̖h̠̦̖t͓̯͎̗ ̳̪̘̟̙̩̦o̫̲f̙͔̰̙̠ ̹̪̗͇̯t͖̼̼͉͖̬h̹͇̩e͚̖̺̤͉̹͕̪ ͚͓̭̝̺G͎̗̯̩o̫̯̮̟̮̳̘d̜̲͙̠-̩̳̯̲̗̜P̹̘̥͉̝h͍͈̗̖̝ͅa͍̗̮̼̗r̜̖͇̙̺a̭̺͔̞̳͈o̪̣͓̯̬͙̯̰̗h̖̦͈̥̯͔.͇̣̙̝