Help needed for weapon Excalator

[InPhiKnight]

I am lately working on a weapon Excalator. It's about 70% complete. I want to give a move when we hit D>A, hades gate will open in front of the chare using it and I did that but I want MP to drain from the weapon user when he hit the move.
Help appreciated! *#*#¤

[empirefantasy]

use a mp tag? it works

[InPhiKnight]

use a mp tag? it works

Thanks! But I already realesed that weapon and don't want to change that.
BTW I am making a new weapon and I will use the mp tag there.