I like it but that’s not what I wanted to say. Poison is actually a great type which deserves high B tier and here's why :
- Poison gives 3 useful resistances, Bug so poison resists both UTurn and FImp, Fighting for the weirdos using Fighting STAB MMX (I'm joking I also use CC MMX ok) and finally fairy because FakeSpeedPixie can be dangerous.
These 3 resistances make great defensive synergies with dark giving mons like AMuk despite being weak to psychic AND resisting no MoldyMoves (Poison, not AMuk)
- It absorbs TSpikes and TSpikes SUCKS
- It’s not THAT great on itself but it combines effectively with other types to give top tier mons. We already saw that for AMuk but I'd like to talk about my favourite usum ph pokemon (neither Exca nor MSci) MEGA GENGAR. It’s STAB Moongeist is great but does 0 damage to (potentially) the best WG user (talking 'bout MAud, not Melo). And here's poison to get super effective damage on that [[Double Barrel Shotgun User]].
Poison also makes MGar a really cool user of Choice Scarf. With the Scarf MGar is the FASTEST mon in the game (considering non-boosted mons) so prioritiy moves suck. Here, poison gives FImp resist and FakeSpeedPixie double resist which is great with FakeSpeed (and MachPunch ig) immunities. Thus makes MGar an amazing priorities checker since the only good priorities that hit it are SNeak (super effective so that sucks tbh) and Ice Shard
Yes, Mega Gengar is good, sure. AMuk is good, sure. But here's why Poison is objectively a bad type:
1: Poison is weak to Psychic, meaning if you are not also Dark, you will likely get 1HKO'd by Photon Geyser. This makes it a bad Wonder Guard type.
2: The users of a specific type
do not define the usefulness of said type. Take Kingambit for example. It's a complete monster in OU. However, does that make Steel/Dark a good type? No. It's hot garbage. Same goes for Kyurem and Weavile.
3: If you really want to go by that (horrible) analogy, though, I have even more evidence. There are only two Poison types on the current VR. Let's look at everything else in B: Fighting: 4 mons. Flying: 4 mons. Fairy: 4 mons. Bug: 3 mons. Electric:
Okay sure, the only one on the VR is Pikachu, but if it was up to me, I'd put Electric in C. Notice a pattern here? All of these B tiers
except Electric have more relevant mons than Poison.
4: Finally, Poison is horrible offensively. It hits two types for super effective damage: Grass, which is usually paired with Steel, and Fairy. Fairy is a decent type to hit, sure. But you know what else hits Fairy?
Steel. And you know what moves Steel types spam?
Sunsteel Strike.
So there. That's why Poison is bad. Goodbye.
(edit) I forgot one more thing. Poison absorbing TSpike is actually not a big deal, as Steel and Flying types are immune to it anyway, and those are substantially better than Poison.