Originally posted by Renlish:

Get some frost arrows, build a high platform in the swamp. Cheese Bonemass without breaking a sweat.

Use the rune stone at Modor's alter to take cover. It never breaks. You just gotta run around it to avoid her.

u can also doe the last bossfrom under his alter by using a portal or a chair to get under it , the chair works better than the the portal . the portal may put u on top one of the tall rock fingers surrounding the altar.