actually they removed the 2 star from the lucky wheel and replaced it with 3 star which is a good change.I could care less about tendo.but if their exchange rate is still 2 for medium refines. it would make it a good event to get them since u can only get 100 from lucky board. if they raised it to 3 ,just skip it. 50 ninja fragz for 20 coupons ain't too bad even if u don't use those ninjas anymore.