Let’s look at the “huge benefit” to my hero that you claim helping other people gives me…
Running a solo T6 Nephalem Rift…
32,968,840,743 = XP before running the rift https://i.imgur.com/kCt5zbP.jpg
33,435,347,756 = XP atfer the guardian has died https://i.imgur.com/HBIJNkF.jpg
61,625,000 = XP gained for handing in completion https://i.imgur.com/EEzVeD2.jpg
33,496,972,756 = XP after handing in https://i.imgur.com/8KIyXyD.jpg
XP gained from kills = (33,435,347,756 - 32,968,840,743) = 466,507,013
XP gained from hand-in = 61,625,000
XP gained in total = 466,507,013 + 61,625,000 = 528,132,013
Running a solo T16 Nephalem Rift…
33,496,972,756 = XP before running the rift https://i.imgur.com/btHivCu.jpg
43,610,228,382 = XP atfer the guardian has died https://i.imgur.com/6tIsL87.jpg
619,875,008 = XP gained for handing in completionhttps://i.imgur.com/pR2vB6V.jpg
44,230,103,390 = XP after handing in https://i.imgur.com/48vi3yr.jpg
XP gained from kills = (43,610,228,382 - 33,496,972,756) = 10,113,255,626
XP gained from hand-in = 619,875,008
XP gained in total = 10,113,255,626 + 619,875,008 = 10,733,130,634
Running a solo GR90
48,390,718,833 = XP before running the GR https://i.imgur.com/ErDI3zD.jpg
67,774,193,206 = XP after the guardian has died https://i.imgur.com/dSdPAIt.jpg
23,393,882,112 = XP gained for handing in completion https://i.imgur.com/gwY4ukB.jpg
91,168,075,318 = XP after handing in https://i.imgur.com/kptMHRK.jpg
XP gained from kills = (67,774,193,206 - 48,390,718,833) = 19,383,474,373
XP gained from hand-in = 23,393,882,112
XP gained in total = 19,383,474,373 + 23,393,882,112 = 42,777,356,485
Okay, so that was all solo stuff. What happens when I invite some people to join me and I carry them through the exact same content? Well, that’s where the Strength In Numbers buff comes in which gives an extra 10% XP per player that joins the group, i.e. 2 players = 110% XP, 3 players = 120% XP, 4 players = 130% XP. However, that buff only affects the XP from kills, not the XP from hand-ins. So, let’s assume I carry three players in a group, and do the same content…
Carrying three players through a T6 Nephalem Rift
XP gained from kills = (33,435,347,756 - 32,968,840,743) * 1.3 = 466,507,013 * 1.3 = 606,459,117
XP gained from hand-in = 61,625,000
XP gained in total = 606,459,117 + 61,625,000 = 668,084,117
Carrying three players through a T16 Nephalem Rift
XP gained from kills = (43,610,228,382 - 33,496,972,756) * 1.3 = 10,113,255,626 * 1.3 = 13,147,232,314
XP gained from hand-in = 619,875,008
XP gained in total = 13,147,232,314 + 619,875,008 = 13,767,107,322
Carrying three players through a GR90
XP gained from kills = (67,774,193,206 - 48,390,718,833) * 1.3 = 19,383,474,373 * 1.3 = 25,198,516,685
XP gained from hand-in = 23,393,882,112
XP gained in total = 25,198,516,685 + 23,393,882,112 = 48,592,398,797
So, how much of an increase in overall XP gained is carrying three players compared to solo?
T6 Nephalem Rift
668,084,117 / 528,132,013 = 1.26499
So, around 26.4% increase
T16 Nephalem Rift
13,767,107,322 / 10,733,130,634 = 1.28267
So, around 28.2%
GR90
48,592,398,797 / 42,777,356,485 = 1.13593
So, around 13.5%
Sounds pretty cut and dried, doesn’t it? I must be gaining huge amounts more XP by doing this, right?
Well, except for one thing. The Strength In Numbers buff has a range, i.e. if your hero gets too far away from any of the other players in the group, the buff drops, and you’re no longer receiving the XP bonus for kills. Here’s a pair of screenshots showing this…
Stood right next to another player…
Stood a couple of screen-lengths away from another player…
So, why is this relevant? Well, when I’m giving people boosts, they can’t keep up with my hero.
In a T6 rift, when I’m giving someone a 1-70 boost, they don’t have any gear / paragon / abilities, etc, to even attempt to keep up. They stand at the entrance, and I ask them to teleport to me when I change map levels or kill the guardian, i.e. at most, I’m likely to have the Strength In Numbers buff for a screen’s worth of mobs.
In a T16 rift, when I’m giving someone a boost, they might well run after me (to pick up loot / DBs / goblin drops / whatever) but I’ll be in a speed-build, i.e. using BK swords (45% run-speed above cap) and with Sprint / Marathon (40% run-speed above cap), so they won’t be able to keep up. Again, at most, I’m likely to have the Strength In Numbers buff for a screen’s worth of mobs.
In a GR90, again it’s unlikely someone being carried will be able to keep up. They may not have gear / abilities to do so, and they’re likely to die quite a lot, so will be far behind due to resurrection timer delays. They also cannot teleport to me until the boss is dead so, once again, at most, I’m likely to have the Strength In Numbers buff for a couple of screens’ worth of mobs.
This means that if I’m carrying three players, the mobs automatically get a larger health pool but neither I, or the players I’m carrying, are gaining anything but a miniscule amount of extra XP, which comes from the first couple of screens worth of mobs. In other words, the increase to XP to my hero from carrying other people is almost zero.
Anyway…
I can run a T16 nephalem rift in 90-120 seconds. Running through a T6 rift isn’t markedly faster, because whether it’s T6 or T16, I pretty much one-shot everything anyway, so the completion time is more to do with how fast I can run through the map(s) whilst things just die around me.
Giving a level 1-70 boost takes, on average, three T6 nephalem rifts. So, let’s assume I do that for a group of three other players, that would be 3 lots of 4-man T6 rift XP. Even assuming they can stay within range of me to provide the Strength In Numbers buff (which they can’t) that would be…
3 * 668,084,117 = 2,004,252,351 XP
Now, the XP from running three solo T16 nephalem rifts would be…
3 * 10,733,130,634 = 32,199,391,902 XP
So, in the same time (i.e. three lots of 90-120 seconds) I could either run people through three T6 rifts, or run three solo T16 rifts. What’s the difference in XP there…
Three T6 4-man = 2,004,252,351 XP
Three T16 solo = 32,199,391,902 XP
32,199,391,902 / 2,004,252,351 = 16.0655377981
In other words, I’d get roughly 16 times as much XP if I spent the same amount of time solo’ing T16 rifts than boosting three people from 1-70.
Okay, what if we compare to me running GR90s? Well, I can run those solo in 2-3 minutes. That means if rifts take me 90-120 seconds, that means I could do roughly two GR90s in the same time I could do three nephalem rifts. So, again, the XP from the three 4-man T6 rifts would be…
3 * 668,084,117 = 2,004,252,351 XP
The XP from running two solo GR90s would be…
2 * 42,777,356,485 = 85,554,712,970 XP
85,554,712,970 / 2,004,252,351 = 42.68659
In other words, I’d get roughly 46 times as much XP if I spent the same amount of time solo’ing GR90s than boosting three people from 1-70.
So, by helping / carrying other people, I’m actively choosing to make less XP per time spent than if I played solo.