Keeping up at the moment, all of my mons except Whismur have been fantastic at route cleaning. Whismur is shit though and Slakoth is Slakoth, but otherwise no complaints other than I took a whopping 80% from a crit Surf from a Zigzagoon lol.
On the subject of Whismur, this pos has all types of problems that plauge it from the start. It's power is medicore even compared to anything else in the game, as Pound is a meh STAB and Uproar locks you in. 23/23 defenses are absolute shit, meaning you take a minimum of 40% from STAB moves. The good news that it grows fast and can become Loudred are mooted when you realize it doesn't evolve until Level 40 and 71/71 offenses can only go so far. This thing actually has a case for F Tier: although mid-late game matchups may change that.
(also btw it requires TM's to fix it's shit level-up moveset but nows not the time)
Brawly Time: Everyone is Lvl 16
Whismur: No. You can’t beat anything other than lolmeditite. I guess E Tier because you beat one Pokemon and can chip any mon with a Hasty/Naive Nature, but meh.
Ralts: You can 2HKO Machop, with Machop either using Bulk Up or attack and Brawly wastes a healing item. Lolmeditie and Makuhita is also 2HKO’d(3HKO after Berry). Even a +1 Vital Throw does less than ½ to Ralts.S Tier
Slakoth: nah T r u a n t
Marshtomp: Bide proves to be a godsend as Machop can’t kill you and dies to Bide. lolmeditite. Makuhita does ½ at +1, but sacking Amana to Potion up Marshy gets the job done. B Tier, if only because Makuhita is a dick and is buff.
Beautifly; Gust 2HKO’s Machop even after a Bulk Up. lol meditie. Gust 2HKO’s Makuhita and Vital Throw does butt for damage.
Getting off to Slateport, grinded Slakoth to 18 for evolution and holy shit Vigoroth is awesome. Takes nothing from anything, has reliable recovery and can just kill anything with Scratch at the moment. Bulk Up will be useful for Rival 2. Also got Ralts to Lvl 20 for Rival 2 and got a Kirlia. Haven't used it much but it's SpA and CM 1 level later sound neat.
Rival 2: Everyone is 19 except for my new Kirlia which is 20
Kirlia: Confusion 2HKO's Slugma while Ember does about 20% to you. Grovyle defaults to Pursuit(or QA when under 15HP) which can only 3HKO, while Confusion only does 25% to Grovyle: healing is required but Kirlia is slated to win pretty consistently. Wingull's Wing Attack does only 10 HP of damage while Confusion 2HKO's.
Results: Overall pretty medicore due to Grovyle's presence: one crit ends you, but the general consistency of this run merits a B Tier.
Vigoroth: This is unfair af. Slugma can't do anything with Ember, and Smog can be cured by easy-to find berries you can get at this time. You also have Encore to take advantage if it derps with Rock Throw. Set up to +2 to OHKO Slugma and Grovyle with a 3-hit Fury Swipe and Wingull dies to a 2-Hit.
Results: lel S Tier
Beautifly: You take like, 1/2 from a Rock Throw from Slugma but you do 2HKO it with Gust so there's that. Wingull can only 3HKO with WA so you easily win Gust spam, but it does outspeed requiring 2 uses of a Super Potion. Grovy is 2HKO'd while Pursuit does 20% of it's health.
Results: Decent luck and some Poitons are all that are required to sweep this girl. Easy A Tier if only because of the potion usage.
Whismur: My goodness this thing is shit. Pound doesn't even deal 25% and Ember does ~18 damage or 25%. Yawn puts you in the dirt, so you have to set-up with Howl in order to anything. Wingull does a lot of damage though, so you can't set up Howls on it( or it can just Supersonic and you hit yourself lel), but you can beat it 1v1. If you like spamming Potions, it can beat Grovyle, but even then a single high roll can end you.
Results: too much set-up and healing to be useful, F Tier.
Marshtomp: lolslugma. Wingull does butt damage while you 3HKO with Tackle. lolGrovyle
Results: You do jack all to Grovy but killing the other 2 makes it worthy of B Tier.
Current Team
Marshtomp, Naughty Lvl 20 58/44/38/33/32/30
Whismur, Hasty Lvl 19 56/26/14/29/18/22
Beautifly, Lonely Lvl 19 55/41/27/43/29/32
Kirlia, Modest Lvl 20 47/20/24/36/28/31
Vigoroth, Naughty Lvl 19 65/39/39/27/25/43