A simple maximum die skill puzzle

I don't have much experience with "Maximum" dice -- dice that always show their maximum value. I sort of think I don't like them very much. But I have to admit they make this decision a little more interesting. I think there's only one attack I can make with any hope of leading to a winning situation (and even that hope is slender)

Game #764  •  ElihuRoot (Jose) vs. glassonion (Randarch)  •  Round #1

Your turn to attack

M(3) M(4) M(6) M(8) M(T) Button: Jose Player: ElihuRoot

W/L/T: 0/0/0 (3)  •  Score: 20.5 (-2.7 sides) Dice captured: (10), M(6) M(3) 3 M(4) 4 M(T=2) 2 M(6)  6  6 M(6) 7 (10) 5 (X=5) Dice captured: M(8), M(6) W/L/T: 0/0/0 (3)  •  Score: 24.5 (+2.7 sides)

Player: glassonion Button: Randarch M(6) M(6) (10) (10) (X)