Tempest Engine

Source: Box of Mastery — grants a random class artifact from this box.

Full set bonus

All Stats+3
Grants Lv.0 Wizard Artifact 1

Set pieces & sources

A full set is four pieces. Each piece grants its own bonus and works individually — the full set is not required.

Rune

Tempest +5% (+2%/refine)

Jewel

Chain Lightning +5% (+2%/refine)

Scroll

Thunder Storm +5% (+2%/refine)

Relic

Cast Spd (+1%/refine)