>>3084300Sorry, but no. Costs are paid via loyalty COUNTERS, which Kraj can get by using the +X ability of the planeswalker. Kraj will not have any loyalty, true, and thus won't pop with no loyalty counters.
The effect will also, of course, allow you to use the abilities as much as you want, as the limit of 1/turn is only because of the planeswalker type, which Kraj doesn't have.