Found in the Basement, Cellar, and the Burning Basement. Found as a Double Trouble boss for the Caves and Catacombs.
Appearance: Giant split in the left-leaning middle of the head, with teeth inside it and blood surrounding. No eyes. For an example, here's the basic enemy version of it: http://imgur.com/a/Dn47a
The Ravine has one of three attacks:
Stops and puts its hands on its head as if having a headache before spewing out 3 random Monstro-like volleys in random directions.
Grabs the split in its head and rips it open, spawning 2 Crevices (linked above: they shoot very small Monstro volleys around them)
Split in its head begins 'chomping' before the Ravine begins rapidly chasing Isaac. If the Ravine touches Isaac during this attack, he will take a full heart of damage.
Found in the Basement, Cellar, and the Burning Basement. Found as a Double Trouble boss for the Caves and Catacombs.
Appearance: Giant split in the left-leaning middle of the head, with teeth inside it and blood surrounding. No eyes. For an example, here's the basic enemy version of it: http://imgur.com/a/Dn47a
The Ravine has one of three attacks: