Goblin Piledriver 21 (Secret Lair Drop Series)

Protection from blue (This creature can't be blocked, targeted, dealt damage, or enchanted by anything blue.) Whenever this creature attacks, it gets +2/+0 until end of turn for each other attacking Goblin.

NM - $13.90
LP - $11.10
MP - $8.40
HP - $5.60
DMG - $2.80