i was in this fight for over 10 mins on 1 champ that kept healing after i got him to a certain % i fought this champ mutiple times never had this issue as well as his monekey king get self reving every 2 or 3 turns seems a bit sus for a bronze match tag team
Most likely the champ that kept healing had this relic equipped. It has no cooldown, so if you can't do enough damage with a single hit that his heal won't bring him back up over 50% you'll just get stuck in a loop.