User blog comment:SonikkuAensland/(No official) Sophia and Cerberus Black Talk about - Dimension Bellum./@comment-24183810-20160630114948/@comment-24183810-20160630153219

SecondOpinion quoted:

" If Abel of the Light was here (and he is in XC-X2) will his holy powers affect Siegmar? Abel is a half-angel, so he has a half of YHWH's power vested within him."

Potentially he can. but as the same with Hikari, it comes down to who is more agile, offensive and can take serious blows without any weaknesses involved, Fallen Ones outright win in terms of stamina. If Abel fought Siegmar Umbra without any knowledge of the Monstrum whatsoever, he would lose. But if he survived, learned about the Monstrum, came back and fought Siegmar Umbra again, he'd win.