>>44254387I think space bend needs a little tweaking, because 100% O-KO moves with no set up would make doubles literally unplayable. Also antimatter is a neat concept, but is really a nerf when you consider how many types Giratina normally resists.
Instead I'd give them all 'Room' set up abilities, kinda like the terrain 'surge' abilities. It is something that I don't think exists yet? Trick Room for Dialga, Wonder Room for Palkia, Magic Room for Giratina. I think they all fit for them and is pretty thematic; Reversing time, changing space, pulling you into a strange dimension where normal items don't work.