Felix, the arcane entity.

flash, haste, hexproof, indestructable until
end of turn.
{t}{x}{w}{u}{b}- gain X amount of life, deal X
amount of damage to target, exile X amount of permanents. exile Felix, the arcane entity
at the end of your turn.
"i wanted knowledge. through knowledge, i gained
power. with power, i brought destruction.
i will do better this time."