Not an competitive deck per say but very good in locking opponents in place so that Omastar beats them to faint.

Palkia is a good wall and the most difficult job is to find the pieces, since Omas is a fossil.

I think if you want to try it out in ranked, maybe consider two Red supporters, since 70 damage is a bit outdated is the game so far, so you'll need that extra damage in EX matches.

Worth trying out!