Ok the design of abilities that effect "non" slivers is good, but this ability is just incredible nuts if this guy is Uncommon in Limited you simply "must" have Removal or you cant win, that alone is boring like hell.
So better dont make it "cant" make it a Ghostly Prison effect, that is powerfull enough if each sliver has the ability:
Fortress Sliver :4mana::symw::symw:
Creature- Sliver
Each sliver has "Creatures cant attack you unless their controllers pays 1".
4/4
This way you will have a pretty decent defence and this can easy be a Uncommon and Boost Sliver decks.
Serendib Sliver :4mana::symu::symu:
Creature- Sliver
All Slivers have ": Target non-Sliver permanent becomes a 1/1 Sliver creature and loses all abilities. (This effect doesn't end at end of turn.)"
2/2
Ok, what to say, its strong if we say its Uncommon, but still a 2/2 for 6 mana so pray they dont have a Shock at hand. Is ok as it is.
Praetor Sliver :4mana::symb::symb:
Creature- Sliver
All Slivers have "Sacrifice this permanent: Destroy all non-Sliver creatures with the same converted mana cost as this permanent."
5/2
Thats more junky, simply because its way to crushing in Limited.
Most creatures in Limited cost 2,3,4,5 not much cost less or more, so you will pretty easy get a strong trade and as the ability is instant you will even get block and kill, making this guy powerfull.
Somehow i would make it Sorcery Speed, as its strong enough, but the instant is a little to much as you cant kill it without trading 2 for 1.
But again i would say its ok as a Uncommon, it will be a card like the others strong enough to build a Limited Deck around.
Impromptu Sliver :4mana::symr::symr:
Creature- Sliver
All Slivers have ": Reveal the top card of your library. If it isn't a Sliver creature card, put it into your graveyard. Otherwise, put that card into play. If that permanent is a creature, it has haste."
3/3
I would even make this card not Sneak Attack, so keep the creature in play, you paid 6 freaking mana to play this creature, so at least keep the random ones in play.
A extra problem. If you say "Sliver card" you will get problems with Tribal Spells, you have to say "Sliver creature card" to have this work as you want as you cant have a Nameless Inversion in play with haste.
Again good Uncommon for Limited.
Symbiotic Sliver :4mana::symg::symg:
Creature- Sliver
All non-token Slivers have "When this permanent is put into a graveyard from play, put X 1/1 green Sliver creature tokens into play, where X is this creature's power."
4/4
Ok, the card is extrem nuts with every Nantuko Husk card, but ok at least it pushes Slivers in that way.
Should be too Uncommon, but i somehow think the name is allready taken.
Sliver Nest :2mana::symg::symg:
Tribal Enchantment- Sliver
Lands you control are 2/2 green Sliver creatures.
All Sliver creatures have vigilance and reach.
:1mana::symw:, Sacrifice a Sliver: Remove [CARDNAME] from the game. If you do, return it to play under its owner's control at the beginning of the next turn's upkeep.
Hm ok, but why has this to be "green"? Actually i would see a card like Sliver Nest should really be a land and have not an effect like that:
Sliver Nest
Tribal Land - Sliver T: Add one mana of any color to your manapool. Spend this mana only to play Sliver spells or activated abilities of sliver cards. T, WUBRG, Sacrifice ~: Search target players library for a sliver creature card and put it into play under your controll.
Here the funny thing is that the card itself will be a wonderfull land for your 5-color Slivers and the ability is inspired by Sliver Overlord to get the big ones into play and hopefully even "steal" some from your opponent, so you could even go for the Chameleon Collosus they play making the card a more usefull toolbox to work with.
Sliver of Truth :3mana::symw:
Creature- Sliver
All Slivers have protection from white.
2/2
Why just "white"? I dont get the flavour here, but you might make the card more "dynamic", just a small change:
Sliver of Truth :3mana::symw:
Creature- Sliver
All Slivers have protection from each color they share.
3/3
So a blue sliver has prot blue, red prot red and so on, making the five color sliver Lords into "prot all colors". If you want to push this guy make it 3/3 to have at least a 3/3 for the mana as it feels like a Rare ala Essence Sliver.
You can do a lot with Slivers, but i think its important to keep in mind that Slivers are focused on "The Hive" and so they should become stronger in multiples and most important their ability should offer something usefull in multiples.
blazing - seems a little unfair though, maybe make it smaller.
serendib - are you sure you want the 1/1s to lose all abilities if they're going to be slivers? Not sure about the wording of that ability.
praetor - probably incredibly powerful in a sliver deck. Might be fair at that cost and toughness, though.
sliver nest is cool enough without giving vigilance/reach, or the flickering ability.
I don't personally like the idea of a truth/grace/etc. cycle.
:4mana::symw::symw:
Creature- Sliver
Non-Sliver creatures can't attack or block.
4/4
Ok the design of abilities that effect "non" slivers is good, but this ability is just incredible nuts if this guy is Uncommon in Limited you simply "must" have Removal or you cant win, that alone is boring like hell.
So better dont make it "cant" make it a Ghostly Prison effect, that is powerfull enough if each sliver has the ability:
Fortress Sliver :4mana::symw::symw:
Creature- Sliver
Each sliver has "Creatures cant attack you unless their controllers pays 1".
4/4
This way you will have a pretty decent defence and this can easy be a Uncommon and Boost Sliver decks.
Serendib Sliver :4mana::symu::symu:
Creature- Sliver
All Slivers have ": Target non-Sliver permanent becomes a 1/1 Sliver creature and loses all abilities. (This effect doesn't end at end of turn.)"
2/2
Ok, what to say, its strong if we say its Uncommon, but still a 2/2 for 6 mana so pray they dont have a Shock at hand. Is ok as it is.
Praetor Sliver :4mana::symb::symb:
Creature- Sliver
All Slivers have "Sacrifice this permanent: Destroy all non-Sliver creatures with the same converted mana cost as this permanent."
5/2
Thats more junky, simply because its way to crushing in Limited.
Most creatures in Limited cost 2,3,4,5 not much cost less or more, so you will pretty easy get a strong trade and as the ability is instant you will even get block and kill, making this guy powerfull.
Somehow i would make it Sorcery Speed, as its strong enough, but the instant is a little to much as you cant kill it without trading 2 for 1.
But again i would say its ok as a Uncommon, it will be a card like the others strong enough to build a Limited Deck around.
Impromptu Sliver :4mana::symr::symr:
Creature- Sliver
All Slivers have ": Reveal the top card of your library. If it isn't a Sliver creature card, put it into your graveyard. Otherwise, put that card into play. If that permanent is a creature, it has haste."
3/3
I would even make this card not Sneak Attack, so keep the creature in play, you paid 6 freaking mana to play this creature, so at least keep the random ones in play.
A extra problem. If you say "Sliver card" you will get problems with Tribal Spells, you have to say "Sliver creature card" to have this work as you want as you cant have a Nameless Inversion in play with haste.
Again good Uncommon for Limited.
Symbiotic Sliver :4mana::symg::symg:
Creature- Sliver
All non-token Slivers have "When this permanent is put into a graveyard from play, put X 1/1 green Sliver creature tokens into play, where X is this creature's power."
4/4
Ok, the card is extrem nuts with every Nantuko Husk card, but ok at least it pushes Slivers in that way.
Should be too Uncommon, but i somehow think the name is allready taken.
Sliver Nest :2mana::symg::symg:
Tribal Enchantment- Sliver
Lands you control are 2/2 green Sliver creatures.
All Sliver creatures have vigilance and reach.
:1mana::symw:, Sacrifice a Sliver: Remove [CARDNAME] from the game. If you do, return it to play under its owner's control at the beginning of the next turn's upkeep.
Hm ok, but why has this to be "green"? Actually i would see a card like Sliver Nest should really be a land and have not an effect like that:
Sliver Nest
Tribal Land - Sliver
T: Add one mana of any color to your manapool. Spend this mana only to play Sliver spells or activated abilities of sliver cards.
T, WUBRG, Sacrifice ~: Search target players library for a sliver creature card and put it into play under your controll.
Here the funny thing is that the card itself will be a wonderfull land for your 5-color Slivers and the ability is inspired by Sliver Overlord to get the big ones into play and hopefully even "steal" some from your opponent, so you could even go for the Chameleon Collosus they play making the card a more usefull toolbox to work with.
Sliver of Truth :3mana::symw:
Creature- Sliver
All Slivers have protection from white.
2/2
Why just "white"? I dont get the flavour here, but you might make the card more "dynamic", just a small change:
Sliver of Truth :3mana::symw:
Creature- Sliver
All Slivers have protection from each color they share.
3/3
So a blue sliver has prot blue, red prot red and so on, making the five color sliver Lords into "prot all colors". If you want to push this guy make it 3/3 to have at least a 3/3 for the mana as it feels like a Rare ala Essence Sliver.
You can do a lot with Slivers, but i think its important to keep in mind that Slivers are focused on "The Hive" and so they should become stronger in multiples and most important their ability should offer something usefull in multiples.
WUBRG#BlackLotusMatterWUBRG
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