Acid Arrow (Evocation)
Level: Mage 2
Mana: 4. Base Success: 60%.
  A magical arrow of acid springs from your hand and speeds to its target. You must succeed on a ranged touch attack to hit your target. The arrow deals 2d4 points of acid damage with no splash damage. For every caster level, the acid, unless somehow neutralized, lasts for another round, dealing another 1d4 points of damage in that round.