Mechanized Armasaur

Ascend (Any time you control ten or more
permanents and you don't have the city's blessing,
you get the city's blessing for the rest of the game.)
Defender
As long as you have the city's blessing,
Mechanized Armasaur loses defender and has
trample and annihilator 1. (Whenever this creature attacks, defending player sacrifices a permanent.)