Firemind's Research 171/259 (Guilds of Ravnica)

Whenever you cast an instant or sorcery spell, put a charge counter on this enchantment. {1}{U}, Remove two charge counters from this enchantment: Draw a card. {1}{R}, Remove five charge counters from this enchantment: It deals 5 damage to any target.

NM - $1.50
LP - $1.20
MP - $0.90
HP - $0.60
DMG - $0.40