Shallowstalker Goblin

When Shallowstalker Goblin enters the
battlefield, goblins and merfolk you control get
+1/+1 until end of turn. If {r} was spent to cast
it, goblins and merfolk you control gain haste
until end of turn.
{u}: Return Shallowstalker Goblin to its owner's
hand. Activate this only if you have no cards in
hand.
The best offense is a good camouflage.