Yes that destroyed my bussiness selling s rank thats why any make challenge just 4 or 5 people just w8 until this event to take naka card....the worst thing is the naka give you s rank with special WTF! Dont have spend you PD on it...thats too bad items..so quit challenge is useless another thing you boost and nerf all item but dont look s rank all people dont have so much lucky to get good stuf but Its look like the GMs think s rank is just for zalure no more because no hit.....what about arrest,hell,demon,blizzard...... All special must be usefull .....this is my opinion.