What are some viable Specially Defensive Tanks/Walls (All Tiers)?

Question

If this is already a question can somebody hide it, but I thought we should have a dedicated page for Specially Defensive Tanks and/or walls. Please post which tier they are in? I will also not be selecting a best answer, as that could be seen as bias.

Comments

I'll flag this just to get Fizz's attention and ask him if this should be allowed. Don't flag this if there are already flags.

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Cool, I wasn't sure if I could post or not. But the idea was to have a general page where people can deliberately post their movesets, a bit like the MovesetBot questions.

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If people want to post their movesets, why don’t they go to the existing threads though?
I don’t have an issue with this in concept, but the reason we don’t usually allow any more moveset-based stuff is that any thread that has this turns into a contest for the better moveset. It just loses focus in that sense. This is fine if we remove that aspect, though.
Thanks for the flag, this how the feature should be used.

Answer 1

OU tier: Chansey @eviolite
Careful nature
EVs: 252 HP / 252 SpD / 4 Def
Ability: natural cure
-soft boiled
-toxic
-seismic toss
-stealth rock/heal bell
Celesteela @leftovers
Relaxed nature
Ability: beast boost
EVs: 156 SpD / 100 Def / 252 HP
-leech seed
-protect
-flamethrower
-heavy slam

Answer 2

UU
Mantine @ Leftovers
Ability: Water Absorb
EVs: 252 HP / 252 Def / 4 SpD
Bold Nature (+Def, -Atk)
IVs: 0 Atk
- Scald
- Roost
- Defog
- Toxic / Haze

OU
Magearna @ Assault Vest
Ability: Soul-Heart
EVs: 248 HP / 8 SpA / 252 SpD
Calm Nature (+SpD, -Atk)
IVs: 0 Atk
- Fleur Cannon
- Flash Cannon
- Ice Beam / Hidden Power [Fire]
- Volt Switch

Answer 3

RU tier

Porygon-2 @ eviolite
trait: analytic
Ev's: 252 HP 252 special defense 4 special attack
Nature: impish
- Recover
- Tri-attack/Thunderbolt
- Shadow Ball
- Protect