You can call in (or "burn") a Favor to perform any of the following:
* '''Do-over:''' After making an attack check, reroll it completely (including any applicable multi-projectile checks, shrapnel checks, etc.). You can decide which string to keep.
* '''Mulligan:''' After making an attack check, change a single attack roll to a solid hit. Any multi-projectile checks, shrapnel checks, etc. do not change.
* '''Ninja step:''' Skip a Stealth Cover check and to guarantee a success
* '''Retreat:''' Skip an Escape check to guarantee a success
* '''Hunter's call ([[Hunting]] skill)''': Reroll a meat harvest checkand keep the best result.
* '''Brass finder ([[Handloading]] skill)''': Skip the roll to find spent cases/hulls; the first 50 in the room are guaranteed. If less than 50 are in the room, they are all guaranteed.
* '''Strike the earth! ([[Mining]] skill)''': When mining ore patches, the current room gains a '''second''' ore patch. Use the same rarity as the first to generate.