YuGiOh YuGiOh 5D's Structure Deck: Spellcaster's Command Common Magical Citadel of Endymion SDSC-EN019

Each time you or your opponent activates a Spell Card, place 1 Spell Counter on this card. If a card with a Spell Counters(s) on it is destroyed, place a number of Spell Counters on this card equal to the number of Spell Counters that were on the destroyed card. Once per turn, if you remove a Spell Counter(s) from your side of the field to activate the effect of a card effect you control, you can remove the Spell Counters(s) from this card instead. If this card would be destroyed, you can remove 1 Spell Counter from this card instead.