u/Auggy24

EDIT: THIS DOES NOT NERF PROXYING AS LONG AS YOU KNOW ABOUT THIS MECHANIC, SINCE IT IS TRIVIALLY AVOIDABLE (you just have to know about it) - since there are quite a few comments about this being a proxy nerf, the exception is singed who cannot kite into the jungle early or he will lose a bunch of xp

EDIT: The xp penalty is 25% not 33%, i have corrected all the percentages in the post to reflect this

EDIT: for future readers, i believe the xp penalty is removed when you hit lvl 3, not at ~2:05

Here is a video of this happening to NattyNatt, causing him to lvl up one melee minion late (3 melee minions in wave 3, instead of 2), which is what made me want to find out what is really happening:

In the first wave of the clip the last 2 melee minions give 47xp instead of 62, causing NattyNatt to lose 2/4 of a melee minion xp and level up 1 melee minion late in wave 3.

This behaviour is not documented anywhere as far as I know, but it turns out that until ~2:05 ish, killing a minion while your champion is outside the lane associated with your role will give you a 25% xp penalty to minion kills.

Here is a video of me intentionally abusing this mechanic to reduce my xp to the maximum, causing me to need 5 melee minions and 3 casters for lvl 2, and 3 entire waves including cannon for lvl 3:

8 minions for lvl 2, 3 full waves for lvl 3, note how the very last minion that i kill at around 2:05 gives full xp

The full xp numbers for minions are: Melee - 62, Caster - 31, Cannon - 75, but I'm getting 47, 23 and 56, which is only 75% of the normal xp for each minion type.

The region of the lane associated with your role quest is extremely aggressive when proxying, causing you to easily lose minion xp if you are playing singed or if you like to proxy between the t2 and t3 tower.

I have tested the specific regions your champ has to stand in (past the red lines) in order to get reduced xp - note the role quest debuff on your hotbar, this will appear after standing in one of these zones for 5 seconds, this debuff describes the area of reduced xp, but the reduced xp applies instantly and does not give you a 5 second grace period like the debuff:

between t1 and t2 red side, standing past the red line while killing a minion will give you a 25% xp penalty

between t2 and t3 red side, standing past the red line while killing a minion will give you a 25% xp penalty

between t1 and t2 blue side, standing past the red line while killing a minion will give you a 25% xp penalty

between t1 and t2 blue side, standing past the red line while killing a minion will give you a 25% xp penalty

between t2 and t3 blue side, standing past the red line while killing a minion will give you a 25% xp penalty

Note: proxying inside the opponents base (at inhib) during the first 3 waves will always give you a 25% xp penalty, no matter where you stand. Sorry lee sin + nilah enjoyers.