As an action, four tendrils of lightning arc out from you. Each tendril can target a creature that you can touch or see within 10 meters which must make a Reflex saving throw If multiple tendrils target the same creature, it makes one saving throw..
On a failure, it takes 1d8 lightning damage for each tendril targeted at it and can’t take reactions until the end of its next turn.
On a critical failure, it takes twice as much damage.
On a success, it takes half as much damage.
On a critical success, it takes no damage.
You can increase the damage by 1d8 for each additional mana expended.