G
Creature - Snake (2/1)
~this~ enters the battlefield with three +1/+1 counters on it
Whenever a creature is put into a graveyard from the battlefield, put a +1/+1 counter on ~this~
Pay 2 life, Tap an untapped Snake you control, remove a +1/+1 counter from ~this~ for each poison counter an opponent has: draw a card
Pay 3 life, remove any number of +1/+1 counters from ~this~: target opponent gains that much life
T, remove four +1/+1 counters from ~this~: target Snake gets +4/+4 until end of turn
All attacking creatures get +1/+1
--Even the greatest flag rallies
– Unattributed

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2U
Instant
up to X target permanents you control are black until end of turn, where X is the number of lands on the battlefield

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2B
Creature - Horror (2/2)
multicoloured creature spells cost any player 4 more to cast
Whenever ~this~ deals combat damage to a creature, target player may Tap an untapped permanent he or she controls. If that player doesn't, put a +1/+1 counter on ~this~
Remove a +1/+1 counter from ~this~: destroy target creature and destroy target land. It can't be regenerated.
Tap an untapped nonbasic land you control, remove a +1/+1 counter from ~this~: each player may search his or her library for a creature card, reveal it, and put it into his or her hand. If those players does, those players shuffles that library afterwards.
When ~this~ leaves the battlefield, two target permanents gain ''protection from white'' until end of turn

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AlexChurchill/MagicCardGenerator