Tzeentch, Changer of Ways

Flying, indestructible, prowess, hexproof, haste
Remove a scheme counter: Each player discards
their hand then draws a card for each scheme
counter you have.
Remove a scheme counter: Chose a permanent.
Swap that card with a random card in it's owners
library. If one of the swaped cards is not a
permanent, exile that card.
If you have no scheme counters, transform
Tzeentch, Changer of Ways.