[HoneyBadger]

A good Pretender strategy for Agartha (in my opinion) is an Imprisoned Forge Lord with turmoil3, productivity0, cold3, growth2, luck2, and drain 2. Forge Lord because if there's one thing Agartha does well, it's gems, lots and lots of earth gems. Might as well spend them wisely, and since your Oracles are going to be researching Conjuration and Evocation, you can use your Forge Lord just to crank out magic items for your sacred fighter captain, and you'll be doing alright, since you can practically make as many of those as you can your basic Seal Guard. Naturally, there are better uses for a Pretender, but it's a strategy to consider.
Turmoil3/Heat3 are taken purely for points, although Heat is more likely to help out your Magma Children than Cold, right? Productivity 0 hopefully lets you make Seal Guards faster, since they're by far the best unit you've got, and you can build up to 3 in a row (Dom3). Luck 2 lets Turmoil 3 be atleast a little advantageous, and I hate losing my Temple in round 3. Drain isn't as bad as it could be since you're making less Oracles, but they're individually more powerful, so the -1 isn't affecting 30 mages, it's only affecting 10.

Fire 8, Earth 9, Nature 4. Some Nature is pretty much a given, since supposedly it helps keep your units from getting afflicted, and those big, slow to produce Seal Guards become pretty useless if they're blind or lose an arm or something, and regeneration's always nice. The +4 to attack is also a given, and the Earth 9 helps keep those units from getting hit, and helps your Oracles stay in the fight.