I am sorry if it is not your bussiness but I just accidentally spent sasori fragments on breakthrough skill ˆIron Sand World Order(cooldown time 2 / battlefield cooldown 1) to Iron Sand World Order +1 (cooldown time 2 / battlefield cooldown 0) that is actually not behave differently. I wanted use fragments for stars upgrade. I can´t take it back i guess ??? Anyway...please explain it to me. Why it cost 100 fragments and make no difference. I am reading the description but I don´t get it. Only one thing which seems to be different is battlefield cooldown? What it is doing battlefield cooldown? If cooldown time is the same as before what is zero battlefield cooldown good for? Really sorry if this question is sh*t. Can I please take back my action? Or at least can you explain it to me why it is better when this skill is upgraded? Honestly gathering sasori fragments is difficult from time perspective so I am not really happy with this. Thanks for attention