usually for frontloading damage on bosses in phase1/2

with PoM, 10 seconds, 1 second delay for animation, cast maybe 3x stone2 and then the remainding 1 second is pretty much wasted

without PoM, cast 4 x stone2, takes about a second longer

not very useful still


on the other hand if you're doing a titan ex and run to the back for gaol, when dps are a bit slow breaking you out it can be useful to fire off 2 medicas otherwise you might only get 1 off before wotl