Rift Raid grindstones

Rift of Worlds > Rift Raid; fight the raid boss with allied teams.

Before you go

Unlock Rift of Worlds and Rift Raid.
Have a team suitable for the raid encounter and access to allied teams or friend support.
Own or plan to keep runes that can benefit from matching grindstones.

Open Rift Raid and review the available raid and team information.
Join with a team appropriate to the encounter and coordinate with the other participants when possible.
Complete the raid battle and collect the rewards shown after the result.
Sort grindstones by the rune set they can improve.
Choose a kept rune whose substats merit improvement and check the stone’s compatibility.
Apply the matching grindstone through the rune upgrade interface and review the changed substat.

Save useful stones until you have a rune worth refining; upgrading disposable gear wastes the opportunity.
Check set compatibility before using a stone, even when its substat looks attractive.

Repeatable raid activity. Continue while you have a reason to improve matching runes and can participate; individual drops are not guaranteed here.

Using a grindstone on a rune you expect to replace; finish deciding whether to keep the rune first.
Ignoring set compatibility; match the stone to a rune from the required set.
Treating a raid run as a guaranteed source of one chosen stone; sort the rewards you actually receive.

Pause raid farming when your priority runes are adequately improved or when another activity better serves the next account goal.

Sources & fact checks

Open a guide to find other locations and see what the item is used for.

Rift of Worlds upgrades

Supplies grindstones that improve rune substats and help finish equipment for established builds.