You're in a dungeon filled with phase spiders. They can ethereal jaunt in as a free action, bite you with their hideous poison dripping mandible of doom, and slip back to the ethereal plane as a move action. There are HUNDREDS of them here, a whole little ecosystem which includes other ethereal bugs.

You're a lvl 8 party with up to 50k to spend. This is your home for the foreseeable future. You need to sleep here and fend off the spider horde as you collect their precious silk. What do you do?

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    \$\begingroup\$ Don't forget that the fighter-types can prepare an action for when the spiders approach them/turn material. \$\endgroup\$ – Yandros Mar 21 '12 at 13:41
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    \$\begingroup\$ Try to resell the property at a loss and find a new location :) This phasing mortgage option just doesn't work for me. \$\endgroup\$ – Brian Ballsun-Stanton Mar 21 '12 at 14:18
  • \$\begingroup\$ Also keep in mind, that it's a move action to phase back into the ethereal, where they're "safe". If you keep moving around, they have to spend their move action to jump you and can't retreat on the same round. Of course, this is moot if you can see ethereal things and hit them with force effects. \$\endgroup\$ – Cthos Mar 21 '12 at 21:48

Seeing as you are staying in the area for a long time, a lot of the short duration spells aren't going to be great. However, some useful force spells to have studied (from Spell Compendium) would include Ethereal Chamber(p84), Forceward(p98), Forceclaw (p97), Force Missiles(p98) and Vortex of Teeth(p232).

The party will need to be able to See Invisible (p275 PHB) to see the spiders when they are ethereal.

I would recommend the following equipment:

  • Rings of sustenance for everyone as they will then require much less sleep and no food/drink. (2500 gp each) or some Hewards Fortifying Bedrolls (1 hour sleep gives benefit of 8 hours sleep, Complete Mage p132, 3000gp)
  • Wand of Magic Missile, possibly one made by a higher level caster to get more missiles per charge. (one made by a 9th level caster costs 6750gp, and gives 5 missiles)
  • Rod of bodily restoration (MIC p173) (3100 gp) - heals STR, DEX or CON damage useful if the poison gets you
  • Neutralise Poison potions (750 gp each) - A suggestion for using these would be to get the cleric (if you have one) to cast Delay Poison (PHB p217) on each party member, then for 8 hours the poison issue is moot and can then take a Neutralise poison potion just before the Delay Poison effect wears off.

Overall, the best way to go would be to avoid being attacked constantly possibly by:

  • Charming/befriending the Queen/Boss spider if there is one. (difficult to say the least, Charm Monster might work)
  • Illusion/polymorph to disguise as phase spiders (risky)
  • Provide such a show of force that the phase spiders decide that you are not prey and avoid you.
  • Rope Trick (PHB p273) would temporarily move you away from them.
  • \$\begingroup\$ +1. I never noticed that text on see invisibility where it also allows for ethereal beasties. \$\endgroup\$ – LitheOhm Sep 18 '12 at 6:13
  1. Buy two rings of blinking and have a lot of magic missiles and neutralize poisons memorized.
  2. Sleep in a rope trick.
  3. Profit

If you think you can keep them off you for 24 hours, cast hallow and put a dimensional anchor on it.

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    \$\begingroup\$ Ghost Touch is a good move too, to keep your martial types from being useless. Great point on the Hallow, definitely an underused spell. \$\endgroup\$ – C. Ross Mar 21 '12 at 13:05
  • \$\begingroup\$ You linked to pathfinder, which is different than 3.5. \$\endgroup\$ – Snowbody Mar 21 '12 at 14:47
  • \$\begingroup\$ @Snowbody He did, but I can vouch for them being the same, will update later if mxy doesn't get to it first. \$\endgroup\$ – C. Ross Mar 21 '12 at 19:16

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