A pleasure, I just needed to do it seeing the avalanche of speedster comments and that Yung wasn't able to follow his speed
badum tss.
Yes, resistance to them, that don't actually mean that characters outside of the verse would suddenly gain several resistances, that isn't how verse equalization works.
Additionally even if we go with your route the opponent would need to have the opponent would need some massive amount of mana, like, just very early in the series he already was stated to have the mana pool of thousands
or were millions? superior dragons, and that was really early in the story, after that he had a massive increase of mana (mainly via his special training that duplicate his mana pool after each fired arrow), is actually because of his big mana pool that his pocket dimension currently is the size of a universe, so I really doubt that Doom would come even close to the amount of energy this Makoto have unless he have an infinite energy source.