Trey's dodge roll: 17
So, the arrow missed.

Trey flies closer to the archers.
10 + 30(15AGI / 5 * 10)
40 feet

Trey's hit roll: 4 + 15/2 = 11
Human's dodge roll: 4 + 31/2 = 19
Nope.

Trey's remaining MP: 8/10