Speed aura(Fu-Shan, Ursala the Mourner, etc) a must.
Samar picks up extra speed with whirlwind of death and spirit haste masteries, and warmaster mastery needed. Also must have regeneration+immortal gear sets on Samar.
If you're having trouble with the boss try to get Samar there by himself to avoid more bomb(s), damage.
Thanks to Coldbrew Gaming and Stew Gaming for the video leads!
Samar is mainly able to stay alive because of his passive that activates block damage buff when a hit would drop his hp below 30%.
#doomtower #hard #floor90 #dreadhornbommal #samargemcursed #solo #raidshadowlegends