Hala'kar, Planar Phage

Hala'kar costs {3} less to cast for each time it was
played from the command zone this game.
When you cast Hala'kar or when it leaves the battlefield exile up to x non-land permanents on
the battlefield, they gain suspend x, x is the
number of times Hala'kar has been cast from the command zone this game.
Void-sent(Ignore the color identity rule in your
library for colorless cards.)