double techs in rpg2k3

[TeaBag]

anyone have any ideas how to make this happen?  ideally, id like for one character to select the d. teach, both characters to use a caertain mp, and for the battle animation to show them both attacking.

so my main problems are:
-how do I make 2 characters use mp, and have the skill fail if one doesn't have enough? 
-and is there a way to make both the characters battlers dissapear, so the animation (which includes both of them) looks right?

I could do this all with events probally, but then I'm not sure how the targeting would work.

Halp!