As an action, a shimmering green arrow streaks toward a target within 20 meters and bursts in a spray of acid. Make a ranged spell attack against the target.
On a hit, the target takes 4d6 acid damage immediately and additional acid damage equal to half the amount of acid damage dealt at the end of its next turn.
If you miss by 4 or less, the target takes half the initial damage and no damage at the end of its next turn.
You can increase the damage by 6d6 for each additional mana or psi expended.