Surge Mare

Surge Mare can't be blocked by green creatures.
Whenever Surge Mare deals damage to an opponent, you may draw a card. If you do, discard a card.
{1}{u}: Surge Mare gets +2/-2 until end of turn.
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"Far away, in distant lands, lies a backwards place where horses swim and the birds walk..."
— Stepfon D. Wilde, The Million Ways the World Was Made