[Gameplay] Gnar Hyper/Face of the Mountain

I was playing as Gnar in one for all, and bought relic shield so the other gnar could cs. I noticed from Level 2 through the rest of the match that the spoils of war passive from Relic Shield/Targon's Brace/Face of the Mountain wasn't functioning as it should have. It would share gold, but only if I last hit naturally. It would not proc its instant kill below (x) health. I did have charges, and a nearby champ, so that wasn't the issue. I did not notice it being a problem before I picked up gnars Hyper ability, but it may have been an issue even at level 1. Haven't had a chance to replicate the issue in one for all, nor have i tried in other modes.

In summary:

1. Play as Gnar in one for all.
2. Buy relic Shield.
3. Put a level in Hyper.
4. Attack a minion that should be instakilled by Spoils of War.
5. Watch minion survive to be last hit by another source.
6. Don't get/share gold.