Magical Citadel of Endymion

Each time a Spell Card is activated, place 1 Spell Counter on this card. When a card with a Spell Counter(s) is destroyed, place its Spell Counters on this card. Once per turn, if you would activate a card's effect by removing a Spell Counter(s) from cards you control, you can remove Spell Counters from this card instead. If this card would be destroyed, you can remove 1 Spell Counter from this card instead.