Spell Power Mastery (SR08-EN022) - Structure Deck: Order of the Spellcasters 1st Edition Number_IGAS-EN048 Until the End Phase this

Until the End Phase this card's name is treated as the sent monster's name

If this card is destroyed as a result of battle

Once per turn: You can detach 1 Xyz Material from this card

When a Spell/Trap Card or effect is activated (except during the Damage Step) (Quick Effect): You can target 1 monster your opponent controls or 1 "Harpie" monster you control

this card cannot attack this turn

Spell Power Mastery (SR08-EN022) - Structure Deck: Order of the Spellcasters 1st Edition Number_IGAS-EN048 Until the End Phase thisTypenull Normal Spell AttributeSPELL Card TextAdd 1 "Endymion" card from your Deck to your hand, then you can count the number of "Spell Power Mastery" and "Spell Power Grasp" you control and or have in your GY, and place that many Spell Counters among card(s) you control that you can place a Spell Counter on. You can only activate 1 "Spell Power Mastery" per turn.