The timebreaker augment is a troll pick.
Any chance you have of getting/starring up your timebreaker units is usually slim to none. Half if not a majority of the lobby is going to run timebreaker units simply for econ reasons, but if you spend your gold on levelling, you'll be less likely to see them in the shop. Sure you could save up your gold and sacrifice 80 hp then power roll after one or two people have sold theirs, but unless you get prismatic ticket it's a waste of an augment slot.