Refinements:

R1: Infusion Stinger

Dealing Elemental DMG increases all DMG by 6% for 6s. Max 2 stacks. Can occur once every 1s.

R2: Infusion Stinger

Dealing Elemental DMG increases all DMG by 7.5% for 6s. Max 2 stacks. Can occur once every 1s.

R3: Infusion Stinger

Dealing Elemental DMG increases all DMG by 9% for 6s. Max 2 stacks. Can occur once every 1s.

R4: Infusion Stinger

Dealing Elemental DMG increases all DMG by 10.5% for 6s. Max 2 stacks. Can occur once every 1s.

R5: Infusion Stinger

Dealing Elemental DMG increases all DMG by 12% for 6s. Max 2 stacks. Can occur once every 1s.

Your support is more valuable than a primogem.