Hi,
yesterday I boosted a friend from 1 to 70 on hisT6 level (means he opend the game on T6..) . I found out that I get the same amount of Gold from the explosions as on lvl 70 T6.
While I was leveling my friend I made ~ 25M and I mean you know, those mobs are all 1-hit. In total we took ~ 1,5h time to get to 70. So ofc there are better ways to farm fast gold, but still not bad for the not so good equipped ppl I guess.
so the Boon of the Horder Gems seems to be linked to the T-level not the Char level.
Not sure if it is intended but I can't imagine that Blizz wanted it that way as you can make a lot of free Gold without stress.
Maybe interesting for ppl not able to farm on T6 on 70.
If you do it only for Gold Farmign you could go to better spots. We just did Act 1 bounties to level him fast.
Greets