Alternatively Kara takes the position at P16 which frees Rakken to move to N13 and destroy O12. Aran and Jalnir take out the wyvern on P12. Nathaniel does his thing. Anselm impales the wyvern on P14, and Kain moves to Q16 to protect Kara. Only reason I'd suggest it is that Kain can't kill the wyvern on P12 with just the handaxe can he?