[Cohen]

Thinking to switch Moloch on Marignon.

For human pretenders, I can assure they're damn frail.
I tried a Great Warlock (and with 24 HP it isn't an SC chassis, he has great risks to get crushed by any indep, considering his combat stats aren't great and he's precision 9 by default!) with A5, F5, B3, W3 (A5 = +5 Precision, and able to cast Aim to help more, F5 to cast some more flares with quickness, A5 and F5 as base for Air Queens and Fire Kings, B3W3 needed for Ice Devils), it got crushed by a Blue Dragon with ease (even if the aimed flare hit the dragon the 2nd turn - quickness, aim, flare, flare, flare were the script - and set it aflame, the huge amount of HP of the dragon, combined with quickness and BoW allowed it to smash both infantry and pretender).

Personally I've liked more to give them some special skill (like the Great Warlock with Imps in battle, or a Blood Magic bonus, since we're talking about this. Or like an Arch Mages with a general spellcasting bonus of 10% in gem/fatigue discount to talk of something else ... but I can't do that via modding.).
Don't forget Rainbow Humans are frail, and they'll lose the most points of magic by getting killed.

The base HP of a pretender are heavily modfied by your own dominion (or enemy).
Playing in MP means if your Pretender is spotted by enemy, that he gets arrowed or something else (seeking arrows or wind ride, fires from afar, or anything you could throw at, especially if it's frail). Having 1 slot occupied with an Amulet of Missile Protection, and some immunities instead of some boosters isn't so nice.