I searched through Bug Hunt, but couldn't find this anywhere. Check out the log from this exchange during the second encounter of the first Lvl.18 adventure in the AotA expansion: Uthdan has regenerative blood. <-- Okay, heals from damage unless it's fire. Troll Warrior drew a card. Uthdan becomes flammable. <-- Now if the damage is fire, it's increased by 3. Troll Warrior drew a card. Uthdan has regenerative blood. <-- Overwrites the old regenerative blood. Troll Warrior drew a card. Uthdan walks Uthdan moved. Janru shoots a tiny cone of flames <-- Fire damage. Uthdan catches fire! <-- Combustible triggers. Thick Hide Armor reduced damage to Uthdan by 2. Uthdan took 3 Fire damage. <-- As expected -- so far so good. Uthdan mightily bludgeons Janru Janru took 14 Crushing damage. <-- Ow. Janru emits a jet of fire! Uthdan catches fire! <-- Okay, still taking extra damage from fire. Thick Hide Armor failed! Uthdan took 4 Fire damage. <-- Yup, still cool. Rubbernose walks Rubbernose moved. Janru detonates a ember burst. <-- Centered in the square behind him. Thick Hide Armor reduced damage to Uthdan by 2. <-- Wait... he didn't catch fire? Uthdan took 1 Fire damage. <-- Um, what happened to Combustible? At this point in the fight, I right-clicked Uthdan and found that his Combustible trait had vanished.
And it's now the most recent attachment. He should have had Troll Regeneration, Fire Spray, and Flame Jet active. Then the Ember Burst should have pushed off the Troll Regeneration.
Just tested the entire chain on test, everything looks wai. Thireldhroses has regenerative blood. Thireldhroses drew Surging Shield Block. Thireldhroses becomes flammable. Thireldhroses drew Thick Hide Armor. Thireldhroses has regenerative blood. Thireldhroses drew Thick Hide Armor. phaselock passed. Wendhondan discarded Minor Heal. Wendhondan discarded Heal. Barazdron discarded Simple Strike. Barazdron discarded Startling Strike. Torudorron discarded Healing Dash. Aeufe discarded Magma Spray. Aeufe discarded Wall of Fire. Aeufe discarded Hot Spot. Aeufe discarded Dash. Aeufe discarded Burning Fingers. Thireldhroses discarded Thick Hide Armor. Thireldhroses discarded Thick Hide Armor. Thireldhroses discarded Surging Shield Block. Thireldhroses discarded Barge. Thireldhroses discarded Cautious Sneak. Thireldhroses discarded Dash. Wendhondan drew Dash. Wendhondan drew a card. Wendhondan drew a card. Barazdron drew Walk. Barazdron drew a card. Barazdron drew a card. Torudorron drew Dash. Torudorron drew Boosted Heal. Torudorron drew Healing Benediction. Aeufe drew Dash. Aeufe drew Instant Burn. Aeufe drew Winds of War. Thireldhroses drew Dash. Thireldhroses drew Shimmering Aura. Thireldhroses drew Thick Hide Armor. Aeufe drew Burning Fingers. Barazdron is having trouble with that large weapon. Barazdron drew a card. lockphase passed. Aeufe shoots a tiny cone of flames Thireldhroses catches fire! --> Combustible, Troll regeneration, Burning fingers Thick Hide Armor failed! Shimmering Aura failed! Thick Hide Armor failed! Thireldhroses took 4 Fire damage. lockphase passed. Aeufe emits a jet of fire! Thireldhroses catches fire! --> Troll regeneration, Burning fingers, Flame jet Thick Hide Armor reduced damage to Thireldhroses by 2. Shimmering Aura reduced damage to Thireldhroses by 3. Thireldhroses took 0 Fire damage. lockphase passed. Aeufe detonates a ember burst. Thick Hide Armor reduced damage to Thireldhroses by 2. --> Burning fingers, Flame jet, Ember burst Shimmering Aura failed! Thick Hide Armor reduced damage to Thireldhroses by 2. Thireldhroses took 0 Fire damage. Burning Fingers damaged Thireldhroses. Firestarter added 2 damage. Hot Flames added penetrating. Thireldhroses took 3 Fire damage. Flame Jet damaged Thireldhroses. Firestarter added 2 damage. Hot Flames added penetrating. Thireldhroses took 5 Fire damage. Ember Burst damaged Thireldhroses. --> Ember Burst discarded, duration 1. Only Burning fingers, Flame jet left. Firestarter added 2 damage. Hot Flames added penetrating. Thireldhroses took 4 Fire damage.