| Issue | #177 |
| Published | February 1969 |
| Cover Price | 0.12 |
| Pages | 36 |
| Editing | Stan Lee |
| Notes | Hail the Master! New masked costume |
| Synopsis | "Asmodeus assumes form of Dr. Strange, to fool Ancient One. Strange takes on new masked costume. Asmodeus recites the Spell of Fire and Ice with dying breath, releasing Ymir the frost giant and Surtur the fire demon." |
| Genre | superhero |
| Script | Roy Thomas |
| Pencils | Gene Colan |
| Inks | Tom Palmer |
| Letters | Herb Cooper |
| Notes | Hail the Master! New masked costume |
| Reprinted | In Marvel Treasury Edition #6 (1975) |
| Synopsis | Asmodeus assumes form of Dr. Strange, to fool Ancient One. Strange takes on new masked costume. Asmodeus recites the Spell of Fire and Ice with dying breath, releasing Ymir the frost giant and Surtur the fire demon. |
| Genre | superhero |
| Script | Roy Thomas |
| Pencils | Gene Colan |
| Inks | Tom Palmer |
| Letters | Herb Cooper |
| Reprinted | in Marvel Treasury Edition (Marvel, 1974 series) #6 (1975) |