Marcus must first beat SR on all the devils (horned devils SR 27, ice devils SR 24). If he beats the horned devils' SR:
Will save vs DC 24 mythic holy smite 1d20 + 11 ⇒ (4) + 11 = 15 fails! This horned devil takes 61 damage and is blinded for 2 rounds....
Will save vs DC 24 mythic holy smite 1d20 + 11 ⇒ (16) + 11 = 27 succeeds! This horned devil takes 30 damage....
Reflex save vs DC 24 cold strike 1d20 + 15 ⇒ (9) + 15 = 24 succeeds! This devil takes 14 cold damage after resistance....
Reflex save vs DC 24 cold strike 1d20 + 15 ⇒ (16) + 15 = 31 succeeds! This horned devil takes 14 cold damage after resistance....