So technically Landon has been fighting all of this at about 1/4 of his power. The only reason he could control the moon is because people asked him to do it, and then it actually became really easy for him. If anyone asked Landon to stop Aforgomon, I was thinking he would fill all his tears with black holes, and probably phase himself from the current dimension's parameters to navigate even while being close to the black holes. I don't know if Aforgomon is supposed to die here, but he would have to leave the current dimension to not be frozen in time from the black holes close proximity. The time slow from their close proximity wouldn't allow for any serious damage unless they were left, which he might leave some in Afogomons tears. He was going to bring his realm to enshroud the tears as well so the holes and tears wreak havoc in the empty realm and can't destroy the Nexus. 

How does all of that sound? I had imagined Landon being on par with Aforgomon from the beginning, but just unable to use his powers.