Zarthon rises, the sun silhouetteing his ears as he leaps first onto the parapet, and then onto the back of the winged man as he swoops past.
Spoiler: ActionsBalance check with sandals of harmonious balanceto balance on a moving object that can't support my weight is about DC 20 for the something that can't suppot me, plus say 10 for a moving object(1d20+34)[35]
He then draws his longbow, and waits.