What are the roles I need to worry about in this tier?
So far I'm thinking hazard support
Sandslash can set up Stealth Rock and remove it with Rapid Spin. Qwilfish can set up Spikes and Toxic Spikes - it also has Taunt and Explosion to prevent opposing Defogs and Rapid Spins. Hitmonchan and Komala can both Spin hazards away - I prefer the latter as Comatose makes it immune to Toxic Spikes.
Something to suck up knock off
Bulky Z crystal users in general are good at this. Z-Heal Bell Granbull and Z-Haze Weezing have great bulk - the former also resists Dark types.
Scarf user unless I want a really proactive stall build
Primeape is a great choice - fast, resists Stealth Rock and has U-turn. While it will probably be banned soon, Medicham works well too - epic power thanks to Pure Power, decent Speed, great move pool and access to Trick to cripple Sableye.
Something that can suck up T-spikes(could be kola spinner)
Qwilfish and Skuntank
A dark type
Skuntank, Shiftry, Absol (I think, can't remember if it moved up)
And even for a stall team I think I'd want some form of momentum at times by switch based moves
Again Primeape is a good U-turn user.
Lanturn's a great Volt Switch user - most ground types won't switch in as they won't want to risk eating a STAB Scald / Hydro Pump.
I haven't played in a long time cause ou disappointed me after meta shifts from metagross banning and last when time in oh I only played zangoose, gravity, and an explosion team that was more funny and ending in losing draws than good
I've been messing with marcago paired with tortiterra because their type combo and support is amazing. But been playing marcago as a rapid spin, knock off, physical contact switch in running Rocky helmet/flame body recover and refresh spreading burns, chip and rocks.
Probably as vaible as furret but I wanna mess with it more till I'm crushed. Low ladder has been decent so far
Bare bones on teams in this tier/crappy snail monster?