101 HP Substitutes? How do they work?

Question

I constantly see these on Smogon, and I am wondering how they work and what EV spread in HP is needed. How?

Answer 1

Edit: ok i didnt explain it very well, this is what i should of added.
It soesnt have to be 100 base hp with 252 evs its hp just normally is around 404/405
which with the kyurem set is exactly what you get 405hp which allows you to use 4 subs.

Comments

http://www.smogon.com/bw/pokemon/kyurem

3rd set can make 101HP Subs, 125 Base HP. I'm wondering the basis of how they work, not on only base 100 HP pokes.

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is there a certain number, or what? Please more extensive.

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No just any pokemon that can use its evs to be able to pull off 101 hp based subs such as i could run a cresselia with 96 evs and it will have 405 hp therefor being able to pull off 4 101 hp subs.

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Well, any Pokemon with a base 100 HP or more can build up a 101 or more HP sub. As said, all that is needed is 404 HP.

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Okay, so a pokemon that can make a 101HP Sub Needs to be at least 100 Base HP. Thanks.