4
Enchantment
1G, Pay 4 life: add 1 to your mana pool for each creature on the battlefield

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(W/U)(W/U)(W/U)
Sorcery
target creature gets -1/-0 (This effect doesn't end)

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3GGG
Sorcery
target opponent may put a card from hand onto the battlefield

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AlexChurchill/MagicCardGenerator