Valerian Phalanx

Heroic — Whenever you cast a spell that targets Valerian Phalanx, put a +1/+1 counter
on each Knight creature you control.
Smite — Whenever Valerian Phalanx attacks, you may cast target instant or Aura
card from your graveyard targeting Valerian Phalanx. If that spell would be put into the graveyard, exile it instead.