Credits for Pika 10k:
Base pack is Spectral 16x by Zlax (default recolor) - https://www.youtube.com/watch?v=mgzNV_swNok
Bow shape and shading from base pack 
fireball recolored from paradise 16x by glace - https://www.youtube.com/watch?v=gElM2UqRou4
fire recolored from plasma 16x by looshy and tenochpacks - https://www.youtube.com/watch?v=OLWtrU6mPyQ & https://www.youtube.com/watch?v=BTjzByW9_HM
night sky from nebula 16x (violet recolor) - https://www.youtube.com/watch?v=U1fbMy32wvs
water from taffy 16x by sejer - https://www.youtube.com/watch?v=_LB_bl529tA
