Yucky situation!

If I don't take the initiative, AD has a choice between taking my (20) with value 20 or speed attacking the other (20) and the f(8).
But if I *do* take the inittive, I leave myself vulnerable to a speed attack from the z(20) with value 13 unless I take it with my (20) with value 20, which means making a very vulnerable reroll with the other z(20).

I guess I could take the initiative, then reroll my (20) with value 10 -- still very vulnerable reroll, wouldn't capture *either* z(20)  and would leave my (20) with value 20 exposed to capture in any case.

What would you do?