SCP 662 Mr. Deeds

(Transforms from SCP 662 Butlers Hand Bell)
Whenever SCP 662 would be dealt damage, regenerate it.
{x}: Search your library for a nonland card with
mana value X, reveal it, and put it into your
hand. Activate only if SCP 662 is untapped.
At the beginning of each end step, exile SCP 662
and return it to the battlefield face-up
under its owner's control.