Hungry Graffalon (SOS)

Creature — Giraffe

Reach Increment (Whenever you cast a spell, if the amount of mana you spent is greater than this creature's power or toughness, put a +1/+1 counter on this creature.)

The nature of the Paradox Gardens is such that the beasts that live there are always exactly as tall as they need to be to get a snack.

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