There is no pokemon in our UU tier who meets all 3 of those Reguirements, but this guy still does what you need and well.
Cofagrigus
Role: Physical Wall
Cofagrigus (M) @ Lum Berry
Trait: Mummy
EVs: 252 HP / 252 Def / 4 SDef
Bold Nature (+Def, -Atk)
- Will-O-Wisp
- Power Split
- Night Shade
- Rest
Role: Special Tank
Cofagrigus (M) @ Lum Berry
Trait: Mummy
EVs: 160 HP / 52 Def / 44 SAtk / 252 SDef
Calm Nature (+SDef, -Atk)
- Calm Mind
- Shadow Ball
- Energy Ball
- Rest
Role: Bulky Sweeper
Cofagrigus (M) @ Leftovers
Trait: Mummy
EVs: 252 HP / 252 SAtk / 4 SDef
Quiet Nature (+SAtk, -Spd)
- Nasty Plot
- Trick Room
- Shadow Ball
- Energy Ball
These are just reccomended sets.
Now he has the amazing Defense stat, and both needed resistances, although his Hp Makes him lack slightly, although he still makes an amazing candidate for any UU team.