Ariados from ‘Bandit Ring’
Boy they’re going to really draw out this set’s reveals. :p Thanks goes to Sean T. for the translation!
Ariados – Grass – HP70
Stage 1 – Evolves from SpinarakAbility: Poison Nest
Once during your turn (before your attack), you may use this Ability. Both Active Pokemon are now Poisoned. (Excluding [G] Pokemon.)[G][C] Corner: 30 damage. Your opponent’s Active Pokemon can’t retreat during your opponent’s next turn.
Weakness: Fire (x2)
Resistance: none
Retreat: 1
The Bandit Ring / Ancient Origins page has everything known about the set so far.