Your weapons always deal their own elemental damage. Your rings and pet-slot jewel only add theirs when both weapon sides carry the same element, and then only the damage of that element counts.
| Weapons | Rings and jewel stack? |
|---|---|
| Two daggers with the same element | Yes |
| Two daggers with different elements | No |
| Elemental bow | Yes |
| Elemental two-handed weapon | Yes |
| Two one-handed weapons, same element | Yes |
| Weapon and shield | No, a shield is never elemental |
Two Poison daggers unlock the stack. Every piece below then adds its Poison damage to one hit. Hover the items to see their stats.
| Gear | Poison added |
|---|---|
| 2x Old Shard(+8) (Poison) | 2 x 80 = 160 |
| 2x Poisoned Ring of Life (+1) | 2 x 52 = 104 |
| Enhanced Mystical Jewel (Offense) (+1) | 22 (its 66 Flame, Glacier and Lightning are ignored) |
| Total per hit | 286 Poison |
Before the target's Poison resistance. See the Damage Calculation guide for how resistance cuts it down.