The game has X number of players.
To make the ancient one loose 1 doom token you need X successful attacks.
The Cthulhu card says:
"After Cthulhu attacks, 1 doom token is placed back on Cthulhu's doom track..."
In one round of combat the players do X attacks, if all are successful (best case) they will remove 1 doom token.
In one round of combat Cthulhu does X attacks, each attack restoring 1 doom token.
What am I not getting? From what I can see it should be impossible to remove any doom tokens from Cthulhu without them popping right back at a much greater rate than at which they can be removed.
I call it a desperate draw.