When Zamazenta gets into the game, Lando-T also will at the same time though, they are both in Home. Same for Heatran (who is the main reason I wish moves from prior Gens can't be transfered). I do agree that they shouldn't be immediately retested (after all, 600 BST is big) but when the meta settles down, both Zamazenta forms and Giratina-A should be given a chance.I don't think it makes a lot of sense to drop former Ubers into OU before the DLCs since the best mons from past generations aren't in the game yet. Lando-T and Heatran and many OU staples being gone will probably make it a lot harder to check a large portion of the meta, and hazards being everywhere makes Pokemon that were broken in past generations even more broken. Can you imagine dropping Zama-C in the tier with Lando-T not in it or Heatran not available to deter Future Point? Zama-C, if it gets tested this generation, should not be a priority right now when the meta is highly unstable.