Huh, Wolf's Halberd has holy element too.

I wonder if there's any Machina melee combatants who DON'T have a holy weapon..

Machina with Holy Attacks:
Grafdakka: Holy Chainsaw (If for some reason he brought that body instead of the reality break chainsaw)
Mecha Maids: Shizuka's stuff and Gwynn's gear
Eos: Amaterasu Heart
Wolf: Celestial Silver Halberd
Ni-Mu: Can make copies of Cydone's sword, and is mini Eos so maybe can do the holy lasers too.
Henry: If for some reason he needed holy instead of the Cheater's Blade or Mjolnir, he could make it with the silver eyes.
Bonesword: Honor Strike, that says it is not holy, but it's anti-demon light, so... Yeah, still counting it.
Maceroy: His Shock lance is Holy type.

Machina without Holy Attacks:
Alexi: Has weak ass ice magic but otherwise can't cover that gap.
Utada: Actually uses sensible machina gear. What?
Lillian: Alchemist stuff, and happyversed anyway.
Unit-T: Is mecha godzilla, and thankfully not mecha jesus godzilla.
Harvester: Doesn't have holy attacks yet. But can probably acquire them pretty easily.

So, discounting Lillian for being Happyversed, that's a 9/4 Machina having holy attacks, and 10/3 as soon as Harvester rips the arms off an angel.