Dexus, Seer's Blade

Partner with Lucina, Realm Seer.
Vigilance.
While Lucina, Realm Seer is on the battlefield, Dexus can block any number of creatures if he is defending a Planeswalker.
Dexus gains +X/+X where X is the number of Planeswalkers you control.
{2}{r}: Dexus deals damage eqaul to his power to each creature blocked by him.
My body shall burn before you touch her, and so shall yours.