Goblin Warchief

Goblin spells you cast cost {1} less to cast.
Goblins you control have haste.

Boros Recruit

({R/W} can be paid with either {R} or {W}.)
First strike

Coat of Arms

Each creature gets +1/+1 for each other creature on the battlefield that shares at least one creature type with it. (For example, if two Goblin Warriors and a Goblin Shaman are on the battlefield, each gets +2/+2.)

Goblin Grenade

As an additional cost to cast this spell, sacrifice a Goblin.
Goblin Grenade deals 5 damage to any target.