First crack for once. Anyway let's start with Tropius.
Tropius is a Pokémon with some potential in PU, but just a bit short of making a name for itself in especially with Jumpluff in the tier. It has an unique Grass/Flying typing but at the same time hinders it greatly too with a Stealth Rock weakness, and is weak to common types of moves such as Fire and Rock, and especially Ice. Offensively, it's stats are somewhat lackluster (then again Jumpluff's is worse), but it does have access to some solid abilities in Chlorophyll and Harvest, as well as access to Swords Dance and a respectable attacking move-pool.
Tropius @ Life Orb
Ability: Chlorophyll
EVs: 252 Atk / 4 Def / 252 Spe
Jolly Nature
- Swords Dance
- Leaf Blade
- Earthquake
- Aerial Ace
Pretty much a poor man's Leafeon with this set in regards to a sun sweeper. Swords Dance boosts Tropius' attack to decent levels at its pretty lackluster coming off of base 68 Attack. Leaf Blade is main STAB attack while Earthquake hits the Fire-types that don't mind Leaf Blade like Ninetales and Rapidash. Aerial Ace is Tropius' other STAB attack, allowing it to hit other Grass-types that resist Leaf Blade and Earthquake such as Jumpluff and Torterra.
Tropius @ Life Orb / Heat Rock
Ability: Chlorophyll
EVs: 252 SpA / 4 SpD / 252 Spe
Modest Nature
IVs: 0 Atk / 30 SpA / 30 Spe
- Sunny Day
- Solar Beam
- Hidden Power [Fire]
- Air Slash / Synthesis
This set doesn't scream originality and is outclassed by faster sun sweepers such as Victreebel, but the Sunny Day set can be pulled off well by any Pokémon packing Chlorophyll and a strong STAB attack in Solarbeam. Hidden Power [Fire] gets boosted from the sun, which is nice for hitting other Grass-types. Air Slash can be used for more STAB and a little bit of neutral coverage on Fire types, or you can run Synthesis for healing, which also gets a nice boost from the sun. Item-wise, you have some options. Heat Rock adds on a few more turns of sun, while Life Orb gives you a nice little power boost, which comes in handy when you look at Tropius' below-average Special Attack.
Tropius @ Sitrus Berry
Ability: Harvest
EVs: 248 HP / 144 SpD / 116 Spe
Calm Nature
IVs: NaN Atk
- Substitute
- Leech Seed
- Air Slash
- Protect / Energy Ball / Toxic
Magnemite ran something like this when he was testing it out (think it was max hp, max sp def. don't really remember) and it was pretty decent. Substitute and Leech Seed gives a way for Tropius to avoid status while restoring HP. Air Slash is mandatory aganist other Grass-types that are immune to Leech Seed. Protect gives an extra turn for healing and a chance for Tropius to Harvest another Sitrus Berry if it used it already. Energy Ball lets Tropius hit Rock- and Water-types super effectively, while Toxic combined with Leech Seed wears down special walls like Lickilicky faster and it helps PP stalling them out of Heal Bell. 248 HP maxes out Tropius' bulk while limiting Stealth Rock damage while the 116 Speed EVs outspeed uninvested base 65 pokemon like Pelipper so Tropius can get up a Substitute before Pelipper could possibly cripple Tropius with Toxic while the rest in added to Special Defense to take special attacks better.
Now time for Swalot's time in the spotlight.
Swalot is pretty unremarkable in every sense of the word in PU. It has poor base stats apart from HP, but has a pretty soid movepool. Swalot has a lot of possible sets, but none are really good. Its main job is to tank hits. As it has base 100 HP and base 83 in the defences, it can do this quite well. It also has access to a few offensive choices as well tho Swalot is outclassed by Arbok and Seviper.
Swalot @ Black Sludge
Ability: Sticky Hold
EVs: 248 HP / 8 Def / 252 SpD
Careful Nature
- Curse
- Pain Split
- Gunk Shot
- Earthquake
Basically a worse Arbok, but w/e. Curse boost your Attack and Defense at the cost of speed, but its not meant to outspeed anything. Pain Split is Swalot's most reliable form of recovery other than Rest. Gunk Shot is Swalot's main STAB attack, while Earthquake hits Steel-types like Pawniard and non Air Balloon Probopass which would otherwise wall this set.
Swalot @ Choice Band
Ability: Sticky Hold
EVs: 252 Atk / 4 Def / 252 Spe
Jolly / Adamant Nature
- Gunk Shot
- Earthquake
- Ice Punch
- Explosion
GasQuake ran something like this in a PU Battle of the Week battle vs
scorpdestroyer (pretty sure it had Bullet Seed over Ice Punch, correct me if I'm wrong if you see this Gasquakee). Gunk Shot is for STAB, Earthquake hits Steel-types that are immune to Gunk Shot like Pawniard and Probopass, Ice Punch is for Ground-types like Torterra and Marowak, and Explosion hits very hard with a Choice Band while weakening or eliminating a possible threat to your team.
Swalot @ Choice Specs
Ability: Sticky Hold
EVs: 4 HP / 252 SpA / 252 Spe
Modest Nature
IVs: 1 Atk / 30 SpA / 30 SpD
- Sludge Wave
- Giga Drain
- Hidden Power [Ground]
- Ice Beam / Shadow Ball
Yeah, I was pretty much surprised when I saw Swalot's movepool and decided to try Specs out just to see what it could do tho it's pretty much a worse Seviper. Sludge Wave is for STAB, Giga Drain for Ground-types that resist Sludge Wave while providing some recovery, and HP Ground hits Steel-types that handles Swalot's Poison/Grass coverage. The last move is mostly filler. Ice Beam for additional coverage, while Shadow Ball hits Psychics and Ghosts.
I'll give some input on Wigglytuff when I get the chance. Not bad for my 200th post.
