this was drawn from my friend  fatalfox as his half of our trade

Terrus' final form A combination of himself, his rider form and his extreme form.

This form grants Terrus amazing power, and ability, and allows him to enter the Accel state, which lets him move at blinding speeds for 10 seconds.

His finisher is Trinity Burst
He fires three beams of energy from the symbol on his chest, and his two arms.

This idea was based of Kamen Rider OOO