[LintMan]

From what I understand, trample damage is based on the size differential between the trampler and trample-ee. So a size 3 trampler (minotaur?) is a lot less fearsome than a size-6 one.

If that's the case, it might also be feasible to use some of the large/cheap summons like fire drakes to take it on. I think they're size 5, so they might hold up better against the juggernaught, and the ice/fire ones can do elemental damage.

Another possiblility: summon some behemoths. It's not too hard to get a death-2 mage and +1 death item to get the to the death-3 level needed for behemoths.

Another idea: If you have the research level for it, I think golems are size 5, have 2S magic and you can buff/equip them up to (near?) SC level power (try astral shield/astral weapon/luck/boots of quickness/some high-prot (or ethereal) armor & shield/sword of swiftness).