1GW
Legendary Artifact Creature - Thopter (2/2)
Flying
T: ~this~ gains ''Sacrifice ~this~, Discard a card: attach target Equipment to target black creature. (Control of that Equipment doesn't change.)'' (This effect doesn't end)
Sacrifice ~this~: you gain 4 life
Whenever an opponent is dealt damage, you may Tap an untapped permanent you control. If you don't, ~this~ gets +1/+3 until end of turn
All permanents gain ''4B, Tap an untapped nonlegendary permanent you control: ~this~ can't be blocked except by red creatures until end of turn''

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BB
Enchantment
All lands gain ''All Clerics can't be blocked except by facedown creatures''

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4U
Creature - Merfolk Rogue (2/1)
Whenever ~this~ leaves the battlefield, you may Pay 1 life. If you don't, until end of turn, if a creature would deal damage, instead tap that creature
1UU: counter target activated ability
2: the next time you would draw a card this turn, you may Discard a card. If you do, instead that player draws five cards
Whenever ~this~ enters the battlefield, target creature gains flying until end of turn and attach an Aura in play to that creature. Gain control of that Aura until end of turn

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AlexChurchill/MagicCardGenerator