Spending threat tokens

By shlic, in Descent: Journeys in the Dark

Hello everyone!

Can someone please tell me, like summary, when and for what can OL spend threat tokens.. I have printed several custom made reference sheets and for dungeon encounters it is listed that OL can spend threat tokens on movement and upgrading dices, like normal (open) encounter.. Then i see some forums posts that you can`t spend threat tokens in this manner in dungeons... So can someone tell me official ruling for spending threat tokens, including encounters, LTs, Avatar etc.

Threat is spent on playing cards in dungeons. .Since you do not have any cards in ordinary encounters you may instead spend them on movement and dice upgrades.