Finally got around to making a proper reference for all of Dominick's different forms.
Though human, Dominick uses potions that are the equivalent of DNA splicers to do his job and hide his identity.
Each one of the these have a different use and effect.

The Orange one, the one spliced with tiger DNA, used most often by him, provides mostly just a mild strength boost, and mostly just to his arms. It also is the only one with no change to his build or height. Those who do of him think this form is his true identity. This one has no notable drawbacks.

Grey, spiliced with rat DNA, allows an enhancement to his agility and reflexes. Used more for stealth and reconnaissance. This new speed comes at a price though, since this concoction also reduces his strength and muscle mass considerably, as well as his height.

The bear on the other hand, who's potions are a foresty green, are the opposite. Increased bulk and strength and stature and the cost of speed and reflexes.

Rumor has it he also has one that grants the power of flight, but that has yet to be recorded as of yet. As well as two that no one knows what they do.