D2 trivia generation for "quiz"

[Crystalion]

A player bets you that if you join him in nightmare he'll summon a minion that you won't be able to summon a minion (not a revive) that can beat it or even harm it (PvP minion duel, no direct participation by the players).

You ask him if it is unbeatable and he replies that even a level one character could defeat it in battle (supposing that a level 1 were allowed to hostile--they aren't).

What is his minion and why is it hard to defeat? What are the details of a level one character could defeat it. How will you summon a minion that defeats the arrogant bastard anyway?

Warning: this is answer/discussion of the trivia above...

The big clue is "nightmare". If he summons (item granted skill) a druid sage (e.g. Oak Sage) and he is a Paladin with Salvation active he'll end up with a quint-immune minion (immune physical, poison, fire, lightning, cold)... this is rather hard to harm! AFAIK only magic damage and Open Wounds will do the trick (and the OW only if, afaik, accompanying/applied by a successful attack damaging the sage by magic).

Since minions don't come with magic damage attacks by default (revives were excluded) and, afaik, a Valk or Shadow can't roll a rnd affix granting magic damage, our only out seems to be to summon an Iron Golem from something that grants magic damage.

Clearly the trivia question could be (and will be) worded differently. One could, e.g., stipulate that the "unbeatable" minion won't even attack (this could be accomplished arbitrarily for a minion by asymetric aka faux PvP)

If a level 1 Necro could (be allowed to) hostile the Sage, he could use a wand of charges of slvl 10 teeth to deliver damage fast enough to kill it (the alternate of zon and magic arrow isn't really practical). clvl 1 is stipulated so that you can't come up with a v1.10 way to use PMH or OW (so that Magic Arrow would be successful, e.g.).