Board Thread:Ben 10 Discussion/@comment-4969948-20160930222056/@comment-7503158-20161017135917

Design-wise, I like the AF/OV version of the Omnitrix, it's sleek, stylish and people could fall for it being an actual watch.

Abilty-wise, the Ultimatrix. Not only can it Ultimize forms, but it works in different dimensions, sense radiation and can allow the user to change into Andromeda forms.