Forum:Ancient Fairy Dragon + Magical Citadel of Endymion

i've already tried looking up the answers & asking my friends and got nothing. K... lets say i have the Magical Citadel on the feild with some spell counters and i have Ancient Fairy Dragon on the field. I use Ancient Fairy Dragon's effect, destroy Magical Citadel, but the Magical Citadel protects itself from being destroyed by giving up a spell counter. Do i still gain the life points and that card from my deck from the dragons effect or does it not work, since the magical citadel wasn't truly destroyed. Black_Rabies