Please check the pinned issues "Known Forge Issues" and "Known Fabric/Quilt Issues" before posting a new report

Loader
Forge

Versions

• Minecraft Version:1.20.1
• Mod Loader Version: Forge 47.2.0
• Origins Version: origins-forge-1.20.1-1.10.0.9-all.jar
• Origins++ Version: origins-plus-plus-2.2-forge.jar
• Pehkui Version: Pehkui-3.8.0+1.20.1-forge.jar

Origin
What origin is causing the problem?

Corrupted wither

Power
What power is causing the problem?
Skirmish

Notes
when you select the corrupted wither from the start the skirmish ability does not work at all, and when opening your origin details, it does not appear, like it did when you first created the world, as the skirmish ability is removed. However if you start as a different origin, then change to the Corrupted Wither, you will have access to the skirmish ability.