Hm, that’s a bummer. As somebody with a Baby Champ-em All roster I’ve found it pretty refreshing rather than being saddled with all the 3* pvp we usually get.
It does benefit the smarter player since all his fives are champed or well covered but they would have to use a loaner on a three. I imagine it’s harder on newer players but it probably depends on MMR rankings . I’d prefer 5s only but that’s incredibly selfish to the player base , a 345 rotation seems equitable
I do like the novelty ruleset PVPs here and there. The ones that aren’t super fun to me are the pick-3 ones with odd or no boost lists that are basically just a second round of simulator.
5* PvP is great for new players. You just pick a team that can hide behind the 5* and use 0 healthpacks. The worst PvP events for new players are 3* events since in those you either have to use a completely useless loaner or have to use an extra health pack every fight. Since MMR matches you with similar rosters until you break that point level you are also just fighting other teams with a 5* loaner and 2 other characters similar to yours. My alt account loves 5* events for exactly that reason. Hide 3Strange/3IF and whittle down everything without having to use a single healthpack unless there is a massive cascade.
Now 5* PvPs are a grind for 4* and 5* players because the health of that loaner is much, much bigger than a 3* or 4* but for newer players it is the best possible situation.