You choose a target to make a spelll attack within 50ft that you can see. You violently move your arms in a slashing motion moving the wind to your will, Flowing in such a velocity that it wounds the person taking the slash, dealing 1d8 dmg.

at higher levels, there is a pattern: level 2 1d8, lvl 3, 1d12, lvl4 2d8, lvl 5 2d12....