Lullmage Mentor

Mentore Mitigatore (Lullmage Mentor) (it)

Creature - Merfolk Wizard | Power/Toughness: 2 / 2 (CMC 3)
Whenever a spell or ability you control counters a spell, you may create a 1/1 blue Merfolk creature token.
Tap seven untapped Merfolk you control: Counter target spell.