Board Thread:General Discussion/@comment-31536324-20190117214835/@comment-32182236-20190123172400

Unfortunately, there's actually an answer to that question.

Asriel absorbed the SOULs of all these monsters. This would naturally include the Amalgamtes, and the missing SOUL power.

Good thing we already have evidence of DT fluctuating, which is proof it can't ge SOUL power, which is a constant.