U
Sorcery
clash with an opponent. If you win, up to four target black creatures get -2/-0 until end of turn

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WW
Artifact Creature - Myr (2/2)
spells cost your opponents 2 more to cast
3BBBB: all Golems can't be blocked except by Myr (This effect doesn't end)
All untapped artifacts gain ''Pay 3 life, Discard a instant card: ~this~ gets +3/+1 until end of turn''
When you control no white creatures, flip ~this~.
- - - - -
Legendary Artifact Creature - Myr (3/2)
When ~this~ is put into a graveyard from the battlefield, target creature gains ''Whenever an opponent casts a creature spell, target opponent may pay RRRR. If that player doesn't, target facedown creature gets +2/+2 until end of turn'' until end of turn
Pay 2 life: ~this~ gets -2/+2 until end of turn
When ~this~ is put into a graveyard from the battlefield, target opponent may Pay 2 life. If that player does, any number of target tapped blue creatures can't be blocked except by creatures with power 7 or more (This effect doesn't end)

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GWU
Instant
you gain 1 life for each poison counter an opponent has

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AlexChurchill/MagicCardGenerator