Breaker the Magician Girl

Descrição:
[Spellcaster/Fusion/Effect]
"Dark Magician Girl" + "Breaker The Magical Warrior"
Each time you or your opponent activates 1 Spell card, put 1 Spell counter on this card (max 5). This card gains 300 ATK for each Spell counter on it. By removing 5 Spell counter from this card, destroy all cards on your opponent side of the field.