[Endoperez]

'SC', short for Super-Combatant. It is a commander which has nice natural abilities and enough items to let it slaughter whole armies of normal units.

With natural abilities I mean things like dozens of hitpoints, high attack and defence Ratings, maybe even some special abilities like regeneration, resistance of a particular element or innate Fireshield. An Arch- or Ice Devil is a good option for Mictlan.

The items depend on what you want to do and can make. Life-draining weapon (Wraith Sword, Hell Sword and a Blood 3-dagger at Construction 6 which also improves Blood by 1) is nice versus living troops as the wielder's fatique goes down and hit points stay high. If you used the dagger you can even give you combatant a shield, like Lucky Coin(gives luck) or Charcoal Shield(gives fire shield). Archdevils can cast Fire Shield on their own, so in most cases you would want to give them something else, like that Coin. Dragon scale mails and Chain mail of displacement are good.

For other slots, choose items to give him as much of this list as possible: regeneration, reinvigoration (fatique removal), luck (if not already), etherealness(rare), flying, quickness, resistances according to enemies (fire resistance vs Abysia etc.), magic resistance, fire-/astralshield. Remember to cast spells that give any of these abilities, like Quickness and Breath of Winter for Ice Devils.
Ring of Regeneration, Pendant of Luck, Amulet of Antimagic, Boots of Flying (or Quickness) and Starshine Skullcap are commonly seen. For reinvigoration, Amulets of Resilience, Boots of the Messenger (I think) and Girdle of Might.

The idea is that normal units will rarely hit him (defence over 18), even when they hit they will give him almost no damage at all( prot. 20+) and after he is hit he will regain it through regeneration or life draining in the same round. Mictlan should aim for summoning as many of the big unique monsters as it can. Ice Devils are available early, and are evil...