I feel that relics should only need to stack to 99 or atleast something less than 999 as I have been running the same Pertubaros Legacy 10 elites on lv 9000 while oneshoting them and still I haven't even managed to hit 200 on any relic stack.
I have 3 different relics at 287/298/294 and I've only farmed the lvl 1000 elites there for about 10 hours, it doesn't seem that bad, are you sure it's not an issue with anything else?
