Chelaxian Mage

Trigger The Chelaxian mage takes fire damage Effect The Chelaxian mage gains resistance 6 to fire against the triggering attack. If this damage came from an unarmed attack, a non-reach melee weapon, or a spell with a range of touch, the creature who caused the damage takes 6 fire damage.

Requirements The Chelaxian mage's last action was to cast a non-cantrip spell

The Chelaxian mage siphons devilish energy drawn from pacts with a vordine devil into their trident. Until the end of the turn, the weapon deals an extra 2d6 fire damage, gains the unholy trait, and gains the effects of a returning rune.

The Chelaxian mage can cast a 5th-rank Summon Fiend arcane spell to summon a Vordine devil. To do so, they must sacrifice three 3rd-rank prepared spells and voluntarily take 4d12 fire damage that can't be reduced or prevented. If the Chelaxian mage is unable to Sustain the Spell, including if they're knocked out or killed, the spell continues, but the GM rolls a DC 10 flat each round, ending the spell on a failure; regardless of whether the spell continues or not, the vordine devil attacks whatever creature is closest to it indiscriminately. If the Chelaxian mage dies, the devil disappears.