User blog comment:- MHCaboose -/Monster Hunter Frontier Z Discussion/@comment-6050823-20170810125119/@comment-7784930-20170810215657

Stygians wasn't another form of Dragonblight, it only had the normal form of it, the new effects was caused by a status from being hit by the Dracophage Bugs themselves.

魂の再燃 is Soul Revival, which allows hunters to revive themselves from a death blow and recover full health once per quest, think like Guts with a Max Potion.

Burnt Meat doesn't make you lose health though, that has a chance on lowering stamina instead of increasing it, a Bitterbug would of been a better example.