The List

Unstoppable Ash

Trample
Champion a Treefolk or Warrior (When this enters, sacrifice it unless you exile another Treefolk or Warrior you control. When this leaves the battlefield, that card returns to the battlefield.)
Whenever a creature you control becomes blocked, it gets +0/+5 until end of turn.

Morningtide

Trample
Champion a Treefolk or Warrior (When this comes into play, sacrifice it unless you remove another Treefolk or Warrior you control from the game. When this leaves play, that card returns to play.)
Whenever a creature you control becomes blocked, it gets +0/+5 until end of turn.