As will be the case for a lot of cards in this set, Pokemon Japan’s Twitter has revealed M Glalie-EX from XY8 Blue Impact! Thanks goes to Sean T. for its translation!
I guess Ancient Traits are gone since we haven’t seen any? They’ve probably been replaced by Break Pokemon.
M Glalie-EX – Water – HP220
Mega Evolution – Evolves from Glalie-EX
When 1 of your Pokemon becomes a Mega Evolution, your turn ends.
[W][C][C] Cryomouth: 100+ damage. If there are 10 or more damage counters on this Pokemon, this attack does 150 more damage.
When a Pokemon-EX has been Knocked Out, your opponent takes 2 Prize cards.
Weakness: Metal (x2)