Nevermind, then…
Yep, that’s also a possibility and probably easier in this scenario.
Tess + Cookie vs Varden Dawngrasp solo is the next suggested testcase, then (easy to set up a deathblow with a discovered Cold Snap this way).
Here’s another old one with Finley that is still present as of this writing: Maxwell gives bonus hitpoints to some friendly murlocs, and, at least in case of minions (tested with Murky’s Marching Murlocs), these get ‘reset’ somehow if they take damage. It’s a bit hard to formulate, and I’m a bit tired for that at the moment… I can provide an illustration, though: https://www.youtube.com/watch?v=ytIGAknbsP0&t=116s (he also talks about this in the video at 1:02, and maybe his formulation is good enough).