Today I heard you can get a lvl1 hero to lvl69 with this. I tried it four times with someone else, but clearing the hell rift wasn't that easy for us since we aren't appropriately geared yet. You are supposed to leave the last mob alive, get it down low enough so the level one hero can kill it. It isn't clear yet whether or not the lvl70 stays inside the game because I didn't ask, but I suppose he leaves.
Our biggest issue was getting that mob down to low HP without killing it. I got it to 5mio, then dropped all gear except for the weapon and kept hitting it until it was down to 500k, but each time I accidentally killed it. The two times the other guy had already switched to his lowbie, he only got from 1->9 and 9->15 respectively. It is supposed to be working though, but I don't know enough about the XP mechanics to confirm this and sadly failed doing this.
Even with the fail, it was still pretty good xp and gold considering our gear and we even got the natalya boots to drop. Compared to some other levelling exploits, this was surprisingly fun.
Another piece of advice: Frost wizards are great for kiting if your gear isn't T6ish yet.
someone up for hellrift farming? EU wizard with 85% elemental dmg,1.8mil sheet dps,11million toughness. PM ME
Bounty Rewards
Lowered rewards for Hell Rift Bounties in Act IV
Enjoy it while it lasts, EU. This is in 2.0.5 patch notes, so already live in US.
Patch 2.0.5 Now Live - Diablo III
I just completed Hell Rift on US, and the exp/gold wasn't changed. Though, there was an elite pack in level 2, which never happened pre-patch.
are there any other quests which give little less xp & gold, but are fast to farm in higher torment levels?
I did T6 Hell rift yesterday, and there was no elite pack. I assume they aren't spawn every time.
A T6 Miner's Gold bounty in Act2 was pretty easy, don't know if it is yet so.
My hell rifts have been nerfed, both for exp and elite pack sadly...