Bane Lords as bodyguards

[Vicious Love]

Hold on, does the site summon non-commander banes, or bane lords? Big difference there, about two size categories of big, if I'm not mistaken(Or are bane lords only size 3?).
If the bodyguards were, indeed, bane lords, I can only assume your opponent enslaved their minds. By no means impossible, but still no small feat, particularly if they were carrying antimagic gear.
I'd watch out for chain-enslaving communions, if I were you.