A harmful status condition which sharply lowers your defense and magic defense (by 50%) for its duration. On Loki, this also sharply lowers your elemental and racial resistances (by 50%).
Resistance can be gained (up to 50%) through increasing AGI. No items currently exist to resist it, but they are planned.
+1/+2 Restoration Elixirs will protect against it and all other status conditions for a short time.