Rhoxsteady Azorius Paragon

Eminence — all creatures you control have
Jailbreak (When a permanent you exiled until a
permanent you own leaves the battlefield enters
the battlefield this creature gains +1/+1 counters
equal to that permanent's converted mana cost)
Costs {2} less for each permanent exiled until a
permanent you control leaves the battlefield.
{ut}: Exile target permanent with converted mana
cost less than Rhoxsteady's power until target
nonland permanent you control leaves the battlefield