Renchez, Krark-Clan Engineer

Hexproof
Renchez, Krark-Clan Engineer can't attack or
block.
Sacrifice a goblin, artifact, or land, add a
construction counter to Renchez, Krark-
Clan Engineer.
Transform Renchez, Krark-Clan Engineer
when there are ten construction counters on him.
"Our concrete is reinforced with the finest goblins.
-Renchez