Ember roc

An ember roc is a variant of the standard roc created by Matthew Mercer. They appear near rifts to the Fire Plane, where they hunt and feed on different elemental creatures until they manifest igneous abilities themselves.

Description
Rocs avoid humanoid settlements and hunt the monstrous creatures, sometimes accidentally assisting the Ashari tribes who entice them to devour creatures attempting to escape into the Material Plane. After years of feeding on fire elementals, salamanders, fire giants, a roc is imbued with primordial power, flames erupting from every feather to transform it into the ember roc.

A flammable oil flows ember roc's body burning like a napalm. Roughly a gallon of oil is worth about 750 gold.

Abilities
Due to their fiery nature, ember rocs are immune to fire damage. They also have multiattack action — one bite and two claw attacks and the keen sight of their distant ancestors


 * Searing presents: Just being close to the ember roc causes fire damage to all creatures within 5 feet of them, also emitting bright light in a 40-foot radius and dim light for an additional 40 feet.
 * Inferno(recharge 5–6): In addition, they have a rechargeable ability to heavily burn nearby enemies in certain radius and push them back.

Campaign One: Vox Machina
Vex noticed one flying above the City of Brass.

Shortly after, Vox Machina fought an ember roc during the battle at Fort Daxio, where it was utilized as a mount by the fire giant general Ordis. After its master dismounted, the ember roc actively joined the battle but was collectively struck down by Pike and Grog.