Devourer giving 5 stacks on Rift Herald assists [GAMEPLAY]
Season 6 Jungle Patch 6.5 - Jungle Variety - UNLEASH YOUR INNER JUNGLER SPIRIT - Multiseason Challenger - Oddshot
If you participate in a takedown on Rift Herald but DO NOT get the last hit, you will get 5 devourer stacks. Scoring the killing blow grants 2.