Defender, the Magical Knight (Green) (DL14-EN006) [Duelist League Promo]

When this card is Normal Summoned: Place 1 Spell Counter on it (max. 1). Once per turn, if a face-up Spellcaster-Type monster(s) on the field would be destroyed, you can remove 1 Spell Counter from your side of the field for each of those monsters, instead.