(devil, evil, extraplanar, lawful)
Source: The Bastards of Erebus, pg(s). 86
These fiery, child-sized devils are Hell's diabolical inventors, applying their intellects towards the greater glory of their realm and the destruction of all others. Ukobach, or tinder devils, are thought by alchemists to know the secret of transmuting materials to gold using a substance known as berith, as noted in the Shagreen. The devils are seemingly helpful to alchemists and metallurgists who summon them, often bringing unasked-for gifts that inspire temptation or destruction.