Vivien's Stampede {4}{G}{G}
Sorcery
Each creature you control gains vigilance, trample, and melee until end of turn. (Whenever a creature with melee attacks, it gets +1/+1 until end of turn for each opponent you attacked this combat.)
At the beginning of the next main phase this turn, draw a card for each player who was dealt combat damage this turn.
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Cards that do something similar expected a card that isn't here?
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