Relics are levelled up by fusing other relics. Fusing is similar to rune crafting. Fusing relics costs Food which varies based on the Relic Tier.

You get relic experience points by fusing relics - the higher the tier, the better the points.
Fusing the same kind of Relics generates bonus experience points.

Note:
  • Relics used in Fusion will permanently disappear.