Because Marrowgar ees complicated.
The entry boss to ToC was 3 separate beast spawns each with their own crazy abilities and strats. Marrowgar may have 4 heads and look cool, but he's a relative pushover. :)
ComicsGridLock Time-Lost Protodrake Level Requirements Turkeys and Hawkstriders Skunk-Bear TK: A'lar U10: Yogg-Saron VoA: Emalon guide ICC: Marrowgar ICC: Gunship Fire = bad ICC: Blood Queen Lana'thel ICC: The Lich King Halion Flowchart VoA: Earth, Wind, Fire