Tartarus Sorceror
Posts: 1822
Joined: Thursday, 31st May 2012, 15:45
My thoughts on rPois
TL,DR: Swamp is the only place you gotta gotta have it.
Dungeon: not important. Adders are dangerous because their high EV makes it harder to kill them, giving them time to poison you repeatedly; but I rarely succumb to their poison anymore, probably because I'm choosing when and where to fight them better and can rest off even a lot of poison. Blowgun wielders by themselves are fragile and in a pack can have their LOS blocked by their buddies. Killer bees are dangerous because of their speed and numbers, so while rPois does give you more time to deal with them, it's usually not enough by itself to defeat a pack without using consumables anyway.
Lair: helpful but not essential. Especially early, it does give a healthy margin of safety against the RNG with venom melee from spiny frogs and mambas. But if you don't have rPois and are facing venom melee in part of a group, you can reset the fight.
Snake: Helpful, the moreso the fewer HP you have because of Poison Arrow and Blink Allies Surround. Nagas otherwise are slow and can be lured to fight in manageable groups, and rPois doesn't help at all against the other danger, Portal Projectile.
Spider: Quite desirable because of the speed and sheer quantity of venom melee and the open terrain helping you get surrounded.
Swamp: Essential because of confusion from swamp drake clouds and damage from swamp dragon breath, especially if you lack flying and are constrained in your ability to move out of clouds.
Orc, Elf, Shoals, Crypt, Abyss, Vaults 1-4: not important. Enemies that poison you are rare enough and/or weak enough that rPois is gravy if you have it.
Vaults 5, Depths, Zot: helpful for gold dragon breath and especially green draconian breath. Similar to Swamp, except here mobs instead of terrain are what make it hard to escape the clouds. Your character is overall more robust though so you can get by without it.
Slime: Useless
Tomb/Pan/Hell: I've never ventured into these branches so no opinion.
Overall: If you've found it and have a free slot, why not? But don't wreck a good kit just to shoehorn rPois into it.