Avoraciopoctules wrote:If you were going to project Mori's military might into near-impassable mountains with defensible caves, how would you alter your deployment? Having some flying zombies for aerial recon is possible, and the ghouls can climb pretty well, but the skeletal hordes are pretty vulnerable if they get crowded into dense groups, and they'd have difficulty removing themselves from pit traps or climbing anything harder than a ladder. Living legionnaires need to be fed, and you have relatively few clerics powerful enough to conjure food.
In mountains, leave the legionnaires at home. Undead FTW. The thing to remember about weird biomes in DND is that the environment itself is a solid challenge for a low-level character. Since skellies are flat-out immune to most of the bad things a mountain can throw at you, you have a huge advantage. All you need to do is wait for your opponents to get in trouble and then nudge them over the edge.
First thing to do: set up a skeleton on every big snowy slope. When they see an army that fails to authenticate, they bury it in an avalanche. Immunity to cold and no need for food means you can just give them their orders and leave them there forever, and you could probably cover the entire mountain range with not more than a few thousand skeletons.
On top of that, station skeletons on mountaintops with mirrors and orders to pass on properly-sequenced flashes of light. Not as good as a
Sending, admittedly, but the network is able to talk to the skeletons you have placed to trigger avalanches. Close passes to guide your opponents into advantageous engagements with your armies or to cut off retreats, flatten supply caravans, or clear out dangerous areas ahead of your own troops' advances.
Similarly, if you know where your enemies will be (that is, you know which pass they're taking), or if you just have a shitload of skeletons handy, you can have your skeleton army lay down on the ground and get a covering of snow. Then wait for the enemy to march over your buried army so they can pop up and start murderizing. Even better, your skeletons have darkvision: do the same thing at night. And remember, even if skeletons are vulnerable when packed together, complete whiteout negates that disadvantage quite thoroughly.
If you're planning on applying the Frostburn rules for cold, skeletons become even more effective. Humans will be automatically fatigued by altitude sickness, and will eventually fail a fort save and become exhausted for -6 STR and DEX. At that point they're not a threat to your skeletons one-on-one, much less en mass.
Cleaning out caves is a problem, but you're in mountains and you have troops that don't need to eat. Just lay siege and you're done. If you want to be really sure, your skeletons are able to do heavy labor despite the cold and altitude and won't have much trouble at all burying the entrances in snow, at which point your enemies suffocate.