Stux wrote:You can only make one roll to ignore each wound. If you have multiple such abilities you can choose which one to use.
Generally named characters are forced to take a specific trait if they are warlord, so I don't know if Bjorn can get that anyway!
He can't (he's locked to Saga of Majesty), but Sagas (=Space Wolf Warlord Traits) can be turned into auras. And still not affect Bjorn at all since the
WLT reads:
SAGA OF THE BEAR
Roll a dice each time a model affected by this saga loses a wound; on a 6, that model does not lose a wound. This saga has no effect on models with a similar ability (e.g. Bjorn the Fell-Handed’s Legendary Tenacity ability).
So you can't even chose to use it over his own
FnP save.
GW even hosts the traits on their site:
https://whc-cdn.games-workshop.com/wp-content/uploads/2018/08/Space_Wolves_Sagas_Warlord_Traits_print-friendly-version.pdf