Trainers » Mallow & Lana | Attacks » Moongeist Beam
If a Pokemon was attacked with Lunala GX's "Moongeist Beam", does that block Mallow & Lana from healing it?
The first part of Mallow & Lana says to switch your Active Pokemon with one of your Benched Pokemon. When your Pokemon is switched the effect of Moongeist Beam is removed, so then you can heal the Pokemon once it is on the Bench.
Source: TPCi Rules Team (2020-02-27)

Relevant cards

Note: All applicable cards may not be listed below.
SM1_141
SM1_153
SM1_66
SM12_198
SM12_198
SM12_231
SM12_231
SMP_SM17
SMP_SM17