Slito, Multo's Head of War

Goblins you cast cost {r} or {1}less to cast.
Goblins you control gain haste, first strike, menace, and a +2/+1.
"I lead wars that cost millions of their lives, but I smile in war, the king of kings see me at high esteem, I shall not let him down, no matter what cost, I am the king of WAR!!!