In gens 8 and 9 Healing Wish can be "stored" by sending out a pokémon at full health right after the Healing Wish. The Healing Wish will proc the next time a damaged or statused pokémon switches in. It can several turns until an unhealthy pokémon switches in and the players may forget the Healing Wish is up, so I suggest that this suspended state of the Healing Wish shows up somewhere in the battle window. And then while we're at it, this could be done for Future Sight/Doom Desire too. Those always come out 2 turns after they're clicked, but in a high-stakes game those 2 turns can take several minutes and people can forget them too. Even high level tournament players with thousands of games of experience have forgotten active Future Sights
example of what it could look like:
example of what it could look like:























