I did have a pretty bonkers warlock build that had a bunch of mods or gear that gave me rift regen, plus the boots that shoot orbs as people while I stand in a rift. I basically just used rift on cooldown and could have as many as 5 at once and spam healed the team. Also used rose to heal as well. Obviously not optimal, but I wasn't about to spend the time collecting the obscure mods and stats that the spreadsheet wizards said I should have, only for the meta to change completely next season.