Immense power flows through you as you become an Infernal conduit. You gain the following features for the duration of the spell:

• You register as a Fiend for the purpose of spells and abilities which detect creature type.
• You gain 50 temporary hit points. If any of these remain when the spell ends, they are lost.
• You have proficiency in Constitution, Intelligence, and Charisma saving throws.
• You have resistance to Cold and Fire damage, as well as to Bludgeoning, Piercing, and Slashing from Nonmagical Attacks which aren't silvered.
• You have immunity to poison damage, and to the charmed, exhaustion, frightened and poisoned conditions. Any charmed, frightened, or poisoned conditions on you when the spell was cast are ended, whilst any levels of exhaustion are suppressed whilst the spell is in effect, returning at the end of the spell provided that their duration has not expired in the meantime.
• Your voice can boom up to three times as loud as normal as if under the effects of the Thaumaturgy spell, and you can change the appearance of your eyes at will with no action required.
• You can see normally in darkness and magical darkness for a range of 120 feet. You ignore this benefit if you already have a feature, like Devil's Sight, that lets you see in this way.
• You can attack twice, instead of once, when you take the Attack action on your turn. You ignore this benefit if you already have a feature, like Extra Attack, that gives you extra attacks.
• Your weapon attacks can use your spellcasting ability modifier in place of the normal ability modifier for attack and damage rolls, count as magical even if the weapon isn't, and deal an additional 4d6 fire damage on a hit.

Immediately after the spell ends, you must succeed on a DC 15 Constitution saving throw or suffer one level of exhaustion.