Gazillionmon is Grizzly in his final form, a Super Ultimate level (Sometimes known as Ultra Level) He evolves directly from Gazimon under very special conditions, so he can be a part of any evolution line.
Title: The Persevering Kaiju
Type: (Ja:) Ancient Beast (En:) Ancient Animal
Family: Nightmare Soldiers
Ascalon Rend: slashed with glowing claws
Photonic Plasma: An lightning breath attack