Thread:KrytenKoro/@comment-31365078-20180801203713/@comment-134861-20180807170645

"but the DRB doesn't use those names at all in their profiles"

Because we're going off of more than one profile. This is why Beelzemon's article mentions Vulcanusmon, although its own DRB profile does not.

The official profile for X5B says "X5 + Beelzemon". The Asahi profile for X5 says "X4 + Sparrowmon". The Asahi profile for X4 lists all four Digimon.

"So I think Shoutmon+X4+Beelzemon works fine. "

From the scenes you showed me, I'm not seeing anywhere where it says "Shoutmon + Shoutmon X4". I'm seeing the script saying that the creature includes Shoutmon/Shoutmon's data, Dorulumon/Dorulumon's data, and Impmon's data. That does not rule out additional data.