Yamato

Evocation Cast Time: 1 Bonus Action Range: 60 feet Components: V, S Duration: Instantaneous You conjure a dart of acid and hurl it at a creature within range. On a hit, the target takes 1d8 acid damage, and if they are wearing non-magical armor, it is corroded and gives a -1 penalty to their AC until repaired. Damage increases by 1d6 at higher levels (5th, 11th, 17th).