I say we keep fighting with Conquista and stop attacking the box. When Conquista dies, we move Sam to the right, get in a hit or two with him, and then make Solstice kill the box itself so it'll be open for attack from Shuri the next turn. Might not work, but at least we'll go down fighting. XD Like seriously, what else can we do?

EDIT: I'm just gonna do it. Sorry if we all die. D=

EDITEDIT: And we coulda done more damage with Shuri our of the box. I swear after this I'm never giving battle commands again, I have no clue what I was thinking.