Chesnaught:
Sub-Endeavor
Chesnaught @ Salac Berry
Ability: Bulletproof
EVs: 32 HP / 252 Atk / 224 Spe
Jolly Nature
- Substitute
- Endeavor
- Superpower / Drain Punch / Low Kick
- Stone Edge / Wood Hammer / Seed Bomb
A twist to typical Chesnaught sets with an offensive set with Endeavor turns it into a decent sweeper with the ability to lure out faster checks like Altaria, Charizard, Latios, Gallade etc, sub down to gain a +1 to outspeed them, Endeavor them down to 1 HP, to eliminate them, while getting some sweeping power at +1 Spe assuming the opponent lacks a priority user. Due to the unique resistance and immunity Chesnaught has, it is not hard to get a free Sub on a predicted switch. Typically the opponent would switch to a check or a counter to attempt to kill Chesnaught, but Chesnaught can Sub down to the berry and get a +1 to outspeed, then Endeavor while the opponent breaks the Sub, followed by an attack for the kill. Against a defensive team, Wood Hammer in the last slot could get yourself down to low HP for the Endeavor, and subsequently defeating the defensive mon.
224 Spe with a Jolly nature allows Chesnaught to hit 363 Spe after the berry is activated, allowing it to get the jump on base speed 115s like Starmie. Atk is maxed for some sweeping power after the berry is activated, and rest is put into HP, which still gives a HP stat indivisible by 4 so you can make 4 Subs before having to Endeavor. 3rd slot would be the main STAB considering Fighting provides superior coverage over Grass. Superpower gives greater immediate power since 2 Superpowers are stronger than 2 Drain Punch factoring the Atk drop from Superpower. Drain Punch on the other hand allows Chesnaught to sustain itself a while longer against frailer teams. Low Kick is still a pretty decent move, albeit less reliable than the other 2. Stone Edge provides the best overall coverage with Fighting, so it is a great move to round off the coverage. Wood Hammer on the other hand, makes Chesnaught better against slower mons, allowing it to get the Endeavor more easily. Seed Bomb is just there as another option so you won't kill yourself if you are already at 1 HP. Other moves that sort of works in the last slot includes general utility moves such as Taunt to block healing; Spiky Shield to kill stuff that outspeeds you even after the berry; Pain Split to leech some health from the next switch in; or even Spikes to get a layer up before going down.