If Lost City stadium is in play and Lunatone's "New Moon" Ability is active, what happens if multiple Pokemon including Lunatone & Solrock are KO'd?
All KO's are evaluated simultaneously, so if the New Moon ability was active all KO'd Pokemon would go to the discard pile.
Source: TPCi Rules Team (2023-09-07)

Relevant cards

Note: All applicable cards may not be listed below.
SV3_92
SV3_92
SWSH11_161
SWSH11_161