User blog comment:Takingday/nidalee's spears charging/@comment-1985493-20130531211427

The difference between Nid's spears and Thresh's flay is that with Thresh it charges up for a guarenteed extra-damage AA. Nid's spear has no such definate damage. It would also lead to you not knowing when her spears would do high amounts or low amounts of damage and things would get confusing and un-fun.