it depends on whether my run is either fresh trip or re-run (which i very often do because of left over monk fish) in the case of former, 0-1, depending on how much bad luck i have on that day. I only pray on Dharok, Verac and Karil. If either of these 3 are in the tunnel, up to 2 more. If Karil is tunnel, its definitely 2, because as a rule i NEVER fight him anywhere but at the chest. (I am also on the process of writing a guide for the safe spots in the tunnel, and not the ones you can see) If i am doing a re-run, it will take about 4 does per run, add 1 more if any of the nasty 3 (D, K & V) are in the tunnels. i bring 4 [4] pots with me per trip, i never ran out of p pots before i ran out of food...