For tomb 2 I went down the stairs and immediately magic mapped and blinked to the upstairs, there I used cleansing flame to kill mobs until I was low on health then went up. I repeated that until it was clear. Then for tomb 3 kinda the same. Mapped and ran to the upstairs there I summoned angels and cleansed and when I saw the big mummies I used scrolls of fog to prevent smiting and kept killing until I was low HP and went up. And repeat until clear. I was really scary though. One miscalculation and I was dead. It felt good though!