Snailoxeroz, Eater of Brains

During your upkeep, choose a dead creature and
exile it. Snailoxeroz gains all abilities of the exiled
creature until your next turn. You may use your
mana as if it was mana of any color to pay for
abilities gained this way.
"Once it was a normal giant snail, that lived happily
in a dungeon. But after it ate enough brains of poor
adventurers that were killed by the dungeons traps, it
became intelligent. And so it decided to visit more
dungeons and taste the delicacies there."