Magcargo (H16) (H16) [Skyridge] XY78 and Smeargle was in play

and Smeargle was in play during that attack

If your opponent's Active Pokemon is an Ultra Beast

This attack does 30 damage plus 10 more damage for each energy card attached to the Defending Pokemon

discard all of them

Magcargo (H16) (H16) [Skyridge] XY78 and Smeargle was in playSet: Skyridge Type: Fire Rarity: Holo Rare Retreat cost: 3 [2] Eruption (20+) Each player discards the top card of his or her deck. This attack does 20 damage plus 20 more damage for each Fire Energy card discarded in this way. [2RR] Fire Stream (60) Discard a Fire Energy card attached to Magcargo in order to use this attack. If your opponent has any Benched Pokemon, this attack does 10 damage to each of them. (Don't apply Weakness or Resistance for