Urchin
Urchin is a CREATURE
Urchin has both the subtypes - Elf and Thief
Urchin is played into your battleline to the farthest left or right of your other creatures, exhausted.
Urchin has a Play ability - Steal 1 aember.
Urchin is Elusive (The First time this creature is attacked each turn, no damage is dealt. Neither Urchin nor the attacking creature take damage)