Well some warriors might not have any pots, so are hesitant to go in the mob first, I'm always hesitant aswell because I have 0 health pots, but alot of mana pots I dont need. My thing is while I'm tanking I worry if the rouges and mages on my team can kill the monsters faster then the monsters can kill me. If they can, then I would always go first in the mob. Speaking of that, I'm a full tank with no dps moves. I only have armor and health buffs and use no pots in normal dungeons because usally the mages and rouges kill the monsters before I hit 50% of my life.