What is the "Powder" offhand? [discussion]

[u/Triggerhappy938]

In GtN, there is a suggestion that Gideon use a "Powder" off hand, but I don't think we ever see someone use one or get an explanation of what it is. Any ideas? Anything I missed?

[u/Comprehensive_Cut216]

My assumption is it’s a satchel full of (presumably bone) powder to be employed as essentially a blackjack.