There're a bunch of skills that give detectable desynchs when cancelled, or when other actions are taken afterwards or temporarily undetected desynchs like inconsistent quanta. I might try a whole bunch of them, but another example that I know of is using Virus, cancelling it's ability and then putting a creature in its place. Most of them don't change the outcome of the battle, though (showing both sides winning/losing).
A lot of work to test them all, so simply moving to confirmed for now :p
