Creature - Human Scout (U)
When Esteemed Birdkeeper enters the battlefield, put a 1/1 white Bird creature token with flying onto the battlefield.
Whenever a Bird you control attacks, you gain 1 life.
Creature - Human Wizard (M)
Whenever Blackblood Warlock deals combat damage to a player, you may pay 2 life. If you do, draw a card.
Whenever a creature with a -1/-1 counter on it dies, you may discard a card. If you do, put a 2/2 black Zombie creature token onto the battlefield.
Creature - Eldrazi (M)
Whenever a player searches his or library, Eldrazi Mindlurker deals 3 damage to that player.
Whenever Eldrazi Mindlurker deals 3 or more damage to a player, that player discards a card.
KH- Splice onto Arcane is one of the worst mechanics ever introduced, both insular and parasitic. Konda has way too much going on, and its ability should only reference +1/+1 counters.
AS- Why not just have it give you hexproof? All it's really protecting you from are red spells, which have no way to deal with enchantments, so for four mana I'd rather invest in Leyline of Sanctity.
I-T- That last ability is clunky, and you could probably get away with a Soulbond type ability instead of Aura tokens, which are awkward. Interesting concept, though.
Fg- This would have the same problem miracle did: your opponent would see you checking the card you draw before putting it into your hand, thus giving them a heads up that you're looking for a miracle or sukuchi card. There seems to be some decent design space with it, but it would need tweaking.
Ct- Oh my. A better (?) Slate of Ancestry. Making all your creatures unblockable on turn 5 would be pretty busted in almost any deck. Throw insane card advantage on top and methinks this is broken.
Brink of WinterUU
As Brink of Winter enters the battlefield, choose solstice or equinox.
Solstice — Red and green creatures don't untap during their controllers' untap steps.
Equinox — Basic Mountains and Forests don't untap during their controllers' untap steps.
As an additional cost to cast Lunar Ritual, sacrifice a black creature and a Swamp.
Add BBB to your mana pool.
Tamiyo, Tide's Sway1UU
Planeswalker - Tamiyo (M)
+1: Draw a card, then discard a card.
0: Return target creature to its owner's hand.
-5: Target opponent gets an emblem with "Nonbasic lands you control are Islands."
IIW: zodiac/astrology-themed block // return to Kamigawa
Indiana Jones, Scholar and Gentleman2UR
Legendary Creature - Human Scout (M)
Whenever Indiana Jones attacks, exile the top card of your library. Until end of turn, you may play that card. If it's a sorcery card, you may cast that card as though it had flash.
Exile target nonland permanent and each other permanent with the same name as that permanent. Search its owner's graveyard, hand, and library for any number of cards with the same name as that permanent and exile them. Then that player shuffles his or her library.
Nissa the Reconciler2BG
Planeswalker - Nissa (M)
+1: Until your next turn, whenever a creature you control dies, draw a card.
-X: Target opponent sacrifices a nonland permanent with converted mana cost X.
-7: You get an emblem with "At the beginning of your end step, return target creature or land card from your graveyard to the battlefield."