3BB
Sorcery
destroy all creatures and clash with an opponent. If you win, two target creatures with fear get -1/-1 until end of turn

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BG
Creature - Human Warrior (2/1)
Sacrifice a nonwhite creature: ~this~ deals 5 damage to each creature and player
All enchantments gain ''When ~this~ leaves the battlefield, destroy target Plains''

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3WW
Creature - Cat (3/2)
Pay 4 life, Discard a card: ~this~ can block any number of creatures until end of turn
absorb 2

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AlexChurchill/MagicCardGenerator