Morch, Unyielding Defender

Whenever a creature enters under an opponents control,
you may pay {w}{u}. If you do, put a app counter on that creature.
Whenever you put a app counter on a creature you may pay {2}. If you do create Emir a blue 1/3 legendary creature token with, "Whenever Emir attacks, you may pay {1}{u}.
If you do creatures defending play controls with app counters on them can't block this turn."

Whenever Morch attacks, you may pay {1}{w}. If you do creatures you control get +1/+1 until end of turn.