Ondarian of Blacksteel

-1: Choose target creature. If that creature dies this turn, put a loyalty counter on Ondarian of Blacksteel equal to its power.
-4: Destroy target creature and put a loyalty counter on Ondarian of Blacksteel equal to its converted mana cost.
-10: Destroy all other permanents. Put a loyalty counter on Ondarian of Blacksteel for each permanent destroyed this way.