I used Dantes for playing the Whispers in the Wall Questline and used his 1 for the Main damage in the preceding parts of the quest
as i reached the point where you are transferred to the Excalibur like Character and can access its abilities and using ability 4
you summon Dantes book instead of the Sword it should summon (Exalted Sword) but you can't use it neither switch away from it
Clip of it from ingame: https://medal.tv/games/warframe/clips/23KaJcNpbFDhJS/d1337JhygvHK?invite=cr-MSxERHEsMjIzNDc2NDcs
I used Dantes for playing the Whispers in the Wall Questline and used his 1 for the Main damage in the preceding parts of the quest as i reached the point where you are transferred to the Excalibur like Character and can access its abilities and using ability 4 you summon Dantes book instead of the Sword it should summon (Exalted Sword) but you can't use it neither switch away from it Clip of it from ingame: https://medal.tv/games/warframe/clips/23KaJcNpbFDhJS/d1337JhygvHK?invite=cr-MSxERHEsMjIzNDc2NDcs