Azaad, Core Shaper

Hexproof, protection from enchantments
When Azaad, Core Shaper enters the battlefield,
put X servo tokens with flying onto the battlefield
where X is the amount of creatures in all
graveyards. You may sacrifice 3 servo tokens at
any time and play a 6/6 Golem token with flying
and trample onto the battlefield
"Junk is merely new sources for destruction"