Kirlia from XY8!
The official Japanese Pokemon Twitter has revealed Kirlia from Red Flash. Thanks goes to Ryah R. for the translation!
Kirlia - Psychic - HP80
Stage 1 - Evolves from Ralts[P] Invitation: Put a Supporter card from your discard pile into your hand.
[C][C] Quick Turn: 30x damage. Flip 2 coins. This attack does 30 damage times the number of heads.
Weakness: Psychic (x2)
Resistance: none
Retreat: 1