Originally posted by NewGuy01
Hagoromo hasn't demonstrated the ability to alter the past beyond the capacity of Izanagi, and the creation of the moon certainly isn't something he could spam on the entire dalek race.
1. He demonstrated the ability to go into the future. Regardless, he could time-skip their Earth-destruction and fight them.
2. Says who? Why can't he spam moon creation? That was fairly casual of a feat for Naruto and Sasuke. Hagoromo > them, so why not? Even if not, one moon should easily prove too much for the daleks to escape in their standard gear.