Going by the top-down design logic weve seen so far, Magic Missile is almost certain to be a Forked Bolt-style burn spell, perhaps losing the ability to target players in return for a damage cant be prevented clause
Mewtwo ex x2 Koffing x2 Weezing x2 Koga x2 Potion x2 X Speed x2 Poke Ball x2 Red Card x1 Professor's Research x2 Sabrina x2 Giovanni x1 The goal here is to immediately put Koffing/Weezing as your active Pokemon, as they're cheap and tanky, so Mewtwo can sit on the bench and slowly be charged with energy - then you use Koga to simply lift Weezing off the field and put Mewtwo into the active position
Hes obviously great with other vampires the cheaper the better to get as many triggers as you can, as well as lord/pump effects, and token doublers like Anointed Procession
For example, if your teammates creatures with lifelink dealt 5 damage, your teammate gained life, not you, and Lone Riders last ability wont trigger