Aegar, the Freezing Flame (0031) (Showcase) (MUL)

Card Text

Whenever a creature or planeswalker an opponent controls is dealt excess damage, if a Giant, Wizard, or spell you controlled dealt damage to it this turn, draw a card.

flavour Text

Though Phyrexian machines could adapt to extremes of heat or cold, they never figured out how to adapt to both at once.