Shield of the Oversoul 242/301 (The List Reprints)

Enchant creature As long as enchanted creature is green, it gets +1/+1 and has indestructible. (Damage and effects that say "destroy" don't destroy it. If its toughness is 0 or less, it still dies.) As long as enchanted creature is white, it gets +1/+1 and has flying.

NM - $4.50
LP - $3.50
MP - $2.50
HP - $2.00
DMG - $1.00