New arcanes 'on kill' and Helminth 'Jump reset'

[(PSN)oo-pH-oo]

At rank 5 the new primary merciless says:

On Kill:

+30% damage for 4s.  Stacks up to 12 times

+30% reload speed

+100% ammo

How do the reload speed and ammo buffs work?  Clearly they're described under 'On kill' but do you actually need a kill to activate them?  if so do they ever run out?

Also one of my frames got 5 'Jump resets' as a Helminth invigoration, anyone know what this is?

[16Bitman]

7 minutes ago, (PSN)oo-pH-oo said:

Also one of my frames got 5 'Jump resets' as a Helminth invigoration, anyone know what this is?

I got the same buff, it gives me 3 extra double jumps, that's it.

No bullet jump on each double jump either, no idea why it reads as 5 in the description either.

[Ryukha]

i guess the reload and ammo buff last for the same duration as the bonus dmg

but you need a kill. i guess. i dont have it max so i cant test it, but i think that how it works.

if those buff are given due to the arcane being max rank, i guess  taht is OP