Sandslash

Mutate {1}{r/g}{r/g}{r/g}{r/g},
When this creature mutates you may add a card,
with a converted mana cost less than or equal to
the number of times this creature has mutated,
from your graveyard to your hand.
"Sandslash can roll up its body as if it were a ball
covered with large spikes. In battle, it will try to
make the foe flinch by jabbing it with its spines. It
then leaps at the stunned foe to tear wildly with its
sharp claws."