Sepheris, The Vision Watcher

Defender, Deathtouch.
•If you control a "Vision" Creature, you may play
this for {2}.
•When this card enters the battlefield, give any
one creature Defender.
•Negate all effects that would change the
controller of this card.
"As do all things, there are beings which can
comprehend the visions, beings that seek to
take the power of the visions."