I have a doubt about how this situation is solved.
Player A
-Active: Regigigas LV.X w/ 4 energies
-Bench: Dialga G LV.X (no damage counters), others.
-Prizes: 5
Player B:
-Active: Torterra LV.X w/ 4 energies (no damage counters)
-Bench: Shaymin LV.X (land form), others.
-Prizes: 6
Player B turn. Player B uses Forest Murmurs and sends Dialga G LV.X Active. Player B attacks Dialga G LV.X with Vigorous Dash. Torterra LV.X´s remaining HP: 130, Dialga G LV.X´s remaining HP: 20.
Player A turn. Player A plays Switch and send Regigigas LV.X Active. Player A attacks Torterra with Giga Blaster. Torterra LV.X´s remaining HP: 30.
Player B turn. Player B attacks Regigigas LV.X with Vigorous Dash (bench damage to Dialga G LV.X). Dialga LV.X´s remaining HP:0, Torterra LV.X´s remaining HP: 0.
My question is, does Torterra LV.X is KOed and discarded before Dialga G LV.X, or Shaymin LV.X´s Poke-Body triggers and Torterra LV.X´s remaining HP is 40?
Player A
-Active: Regigigas LV.X w/ 4 energies
-Bench: Dialga G LV.X (no damage counters), others.
-Prizes: 5
Player B:
-Active: Torterra LV.X w/ 4 energies (no damage counters)
-Bench: Shaymin LV.X (land form), others.
-Prizes: 6
Player B turn. Player B uses Forest Murmurs and sends Dialga G LV.X Active. Player B attacks Dialga G LV.X with Vigorous Dash. Torterra LV.X´s remaining HP: 130, Dialga G LV.X´s remaining HP: 20.
Player A turn. Player A plays Switch and send Regigigas LV.X Active. Player A attacks Torterra with Giga Blaster. Torterra LV.X´s remaining HP: 30.
Player B turn. Player B attacks Regigigas LV.X with Vigorous Dash (bench damage to Dialga G LV.X). Dialga LV.X´s remaining HP:0, Torterra LV.X´s remaining HP: 0.
My question is, does Torterra LV.X is KOed and discarded before Dialga G LV.X, or Shaymin LV.X´s Poke-Body triggers and Torterra LV.X´s remaining HP is 40?