Entei and Articuno have been revealed from the Japanese set Incandescent Arcana, which releases in Japan on September 2nd. We should see most of the cards from this set become part of our Silver Tempest in November.
Ability: Explosive Heat Dash
If this Pokemon has any [R] Energy attached, it has no Retreat Cost.
[C][C][C] Claw Slash: 90 damage.
Weakness: Water (x2)
[W] Ice Wing: 20 damage.
[W][W] Wild Freeze: 70 damage. This Pokemon does 50 damage to itself. Your opponent’s Active Pokemon is now Paralyzed.
Weakness: Metal (x2)