Yes: Dreamlit Actor’s 4-piece has no “cannot stack” clause, so two supports can each wear it and each apply their buff, which is the line Guoba Certified draws between it and Diviner of Distant Reach. Diviner’s 4-piece ends on “This effect cannot stack.” Dreamlit Actor’s ends on “lasting for 3 turn(s).” and nothing else.
That is the question behind “does Dreamlit Actor stack”, and the answer matters for Elation teams that run two supports. Guoba’s conclusion at 6:39 is practical: put Yao Guang on Diviner of Distant Reach, since its team-wide Elation is only needed once, and give Dreamlit Actor to every other support that can trigger it.

One thing the video leaves open: whether the same ally can hold two copies of the 16% Elation at once, one from each wearer. The set text does not say, and Guoba does not test it. Until someone does, plan around two different targets.














