User blog comment:Morning Star TM/RWBY - Weiss freezes a Death Stalker/@comment-26198742-20200208212922/@comment-26198742-20200208222648

The Rules of Death Battle State that Non-Canon Material is Allowed as Long as the Same si Done for the Otherside, You wouldn't use Non-Canon Material if the Otherside doesn't have access to the same exact thing.