how do damage multipliers work?

[Yossar]

No, that's ok, you don't really have to do the test. I have a pretty good idea how it would turn out. You could always stick a ring of resilience on the firbolg. Still gonna have problems with the 7 encumbrance from jade armor, though. Maybe go with rainbow armor and just settle for a single attack. Or rainbow and boots of quickness and forego flying.