v.132 - Hyper Evolution Update Notes

Adventurer buff stacks with themselves, legendary classes stacks only with themselves, same thing for resistance, so classes like Nova miss out entirely on that. Oh, make sure you know that if you have 2 of the exactly same class casting it, it will just rebuff itself, lets say Cannoneer + Cannoneer.

So could the 2 cannoneers (in your example) just chain cast the buff by alternating who is casting whenever the buff is down?