Kroxa has a similar design to Uro, but with an opposite effect. It is still a very cool card and will mostly be played in Mardu Aristocrats decks in Standard and Modern.
It can also find its way into 8-Rack lists in Modern that don't despise playing two colors instead of the usual mono-black. But control players shouldn't look past it either.
Taking all this into account may influence the market share of Kroxa, Titan of Death's Hunger and alleviate it above other similarly priced cards simply due to its sheer range of application.