With laserbank likely completely rotating out next season, this Jirachi could see a 1-of or 2-of inclusion in basically any deck just to counter Seismitoad. It doesn't deal any significant damage but the potential to break the item lock is real, the only way around being Escape Rope or Lysandre from the Toad user. Eventually it will be required to attach one basic energy to the Toad, wich will break the lock and thus enable set ups to be made. Really smart choice to print that card in this format.
I could see decks based around Tyrantrum EX having some play because of Brozong and the other dragon-supporting cards Roaring Skies will bring. It would need some fine building because that attacker is not -awesome-, but it can be just enough and that Ability makes some tech cards unnecessary. What I'm uneasy with is the 210 cap it gets with MB, wich is 10-30 short off the Mega threats that will see more play with the rotation (although it deals with M Gardevoir just fine). Also the attack not using [R] and the 3 retreat cost (not getting much help from Hydreigon EX) are really a bummer.