This is just a set, not an analysis. Oglemi told me to make a new thread cause the current one is in its GP stages.
[SET]
name: SubSeed
move 1: Leech Seed
move 2: Substitute
move 3: Toxic
move 4: Scald / Ice Beam
item: Leftovers
ability: Rain Dish
nature: Bold
evs: 252 HP / 252 Def / 4 SpD
[SET COMMENTS]
<p>This set takes advantage of Ludicolo's great defensive stats and few weaknesses. Ludicolo can set up on weaker support Pokemon, namely bulky Water-types, as well as resisted choice-locked moves. This set can be used with or without rain support, but when rain is provided, Ludicolo has the potential to recover 25% of its health per turn, which counterbalances the health lost from Substitute. Toxic is used to cripple Grass-types that are immune to Leech Seed, and it also helps wear down bulkier opponents. Ludicolo's STAB Scald has a nifty 30% burn rate which could potentially cripple physical attackers, while Ice Beam hits Grass-types super effectively plus certain Flying-types, such as Mandibuzz.</p>
[ADDITIONAL COMMENTS]
<p>The EVs are tailored to boost Ludicolo's physical bulk, as it already has a decent Special Defense stat. Swift Swim can be used if you want a faster, more offensive Ludicolo, or you can tweak the EVs to give Ludicolo more special bulk with a Calm nature. Protect can be used over Toxic for extra stalling capabilities, but this leaves Ludicolo helpless against most Grass-types. Finally, Giga Drain is a second STAB option that pairs well with Substitute, and is useful for quickly restoring large amounts of health.</p>
<p>Toxic Spikes are helpful to wear down the opponent, and they work excellently in tandem with Protect and Substitute. Entry hazards are helpful in general, as this set will cause a lot of switches. Drapion can set up Toxic Spikes and Taunt the opponent, Ferroseed can set up Spikes and Stealth Rock, and Claydol can use Rapid Spin to remove entry hazards. Remember, when using entry hazards, carry a Ghost-type such as Rotom on your team to block Rapid Spin. Clefable is an excellent partner for this set as it can abuse Encore to give Ludicolo an easier switch in, and provides Wish support.</p>
<p>Faster opponents that carry Substitute generally ruin this strategy, and Ludicolo doesn't have the attacking power to break them without any investment.To combat this, a Taunt user can prevent the use of Substitute, while a phazer can force opponents off the field. Ferroseed is another problem for this set, mainly because Ludicolo can't touch it with any of the listed moves, and Ferroseed can use this time to set up. Magneton can trap Ferroseed with Magnet Pull, and Hidden Power Fire will make short work of it.</p>
<p>If you decide to use Scald in last slot, it may be worth pairing Ludicolo with Pokemon that can remove Grass-types. Fire-types such as Entei, Bug-types such as Scyther, and Flying-types such as Mandibuzz are all excellent partners. Finally, the last thing to consider are Pokemon whocan cover Ludicolo's weaknesses. Archeops resists the Flying-, Bug-, and Poison-type moves aimed at Ludicolo, who can easily sponge any Water-type moves intended for Archeops in return. Crustle is another good choice; it can switch into the Poison-type attacks aimed at Ludicolo, and also set up Spikes and Stealth Rock for your team.</p>

[SET]
name: SubSeed
move 1: Leech Seed
move 2: Substitute
move 3: Toxic
move 4: Scald / Ice Beam
item: Leftovers
ability: Rain Dish
nature: Bold
evs: 252 HP / 252 Def / 4 SpD
[SET COMMENTS]
<p>This set takes advantage of Ludicolo's great defensive stats and few weaknesses. Ludicolo can set up on weaker support Pokemon, namely bulky Water-types, as well as resisted choice-locked moves. This set can be used with or without rain support, but when rain is provided, Ludicolo has the potential to recover 25% of its health per turn, which counterbalances the health lost from Substitute. Toxic is used to cripple Grass-types that are immune to Leech Seed, and it also helps wear down bulkier opponents. Ludicolo's STAB Scald has a nifty 30% burn rate which could potentially cripple physical attackers, while Ice Beam hits Grass-types super effectively plus certain Flying-types, such as Mandibuzz.</p>
[ADDITIONAL COMMENTS]
<p>The EVs are tailored to boost Ludicolo's physical bulk, as it already has a decent Special Defense stat. Swift Swim can be used if you want a faster, more offensive Ludicolo, or you can tweak the EVs to give Ludicolo more special bulk with a Calm nature. Protect can be used over Toxic for extra stalling capabilities, but this leaves Ludicolo helpless against most Grass-types. Finally, Giga Drain is a second STAB option that pairs well with Substitute, and is useful for quickly restoring large amounts of health.</p>
<p>Toxic Spikes are helpful to wear down the opponent, and they work excellently in tandem with Protect and Substitute. Entry hazards are helpful in general, as this set will cause a lot of switches. Drapion can set up Toxic Spikes and Taunt the opponent, Ferroseed can set up Spikes and Stealth Rock, and Claydol can use Rapid Spin to remove entry hazards. Remember, when using entry hazards, carry a Ghost-type such as Rotom on your team to block Rapid Spin. Clefable is an excellent partner for this set as it can abuse Encore to give Ludicolo an easier switch in, and provides Wish support.</p>
<p>Faster opponents that carry Substitute generally ruin this strategy, and Ludicolo doesn't have the attacking power to break them without any investment.To combat this, a Taunt user can prevent the use of Substitute, while a phazer can force opponents off the field. Ferroseed is another problem for this set, mainly because Ludicolo can't touch it with any of the listed moves, and Ferroseed can use this time to set up. Magneton can trap Ferroseed with Magnet Pull, and Hidden Power Fire will make short work of it.</p>
<p>If you decide to use Scald in last slot, it may be worth pairing Ludicolo with Pokemon that can remove Grass-types. Fire-types such as Entei, Bug-types such as Scyther, and Flying-types such as Mandibuzz are all excellent partners. Finally, the last thing to consider are Pokemon whocan cover Ludicolo's weaknesses. Archeops resists the Flying-, Bug-, and Poison-type moves aimed at Ludicolo, who can easily sponge any Water-type moves intended for Archeops in return. Crustle is another good choice; it can switch into the Poison-type attacks aimed at Ludicolo, and also set up Spikes and Stealth Rock for your team.</p>