Creature - Goblin Warrior (Common)
Bloodrush - , Discard Skinbrand Goblin: Target attacking creature gets +2/+1 until end of turn.
"These Gruul skin-runes - discern whether their patterns evoke streets, leylines, or both. You have four days." - Niv-Mizzet, to his assistant
There are way more goblins than merfolk in Ravnica. That somehow bugs me.