Boromir Warden of the Tower 4 (Universes Beyond: The Lord of the Rings: Tales of Middle-earth)

Vigilance Whenever an opponent casts a spell, if no mana was spent to cast it, counter that spell. Sacrifice Boromir: Creatures you control gain indestructible until end of turn. The Ring tempts you.

NM - $5.50
LP - $4.40
MP - $3.30
HP - $2.20
DMG - $1.50