WHIRLWIND EXPLANATION: Pokémon have a fixed, permanent score from 0 to 31 for each stat that affects how good that stat can ever get.

This calculator will figure out that score (called a "gene" or, more obtusely, an "IV") for you, so you can discard the unworthy. It's more accurate for higher-level Pokémon, so it's helpful to go into a level 100 wifi battle with someone and check your Pokémon's stats from there.

Stat calculator

Quagsire
Quagsire 		Base
stats		 Stats Effort Stats Effort Stats Effort Stats Effort Stats Effort Stats Effort Possible genes (IVs)
Level Level Level Level Level Level
HP 95
82–90
85–93
91–99
97–106
99–109
108–119
1
Attack 85
47–55
49–57
52–61
56–65
57–67
62–73
20
Defense 85
47–55
49–57
52–61
56–65
57–67
62–73
18
Special Attack 65
37–45
38–46
41–50
44–53
45–54
49–59
26
Special Defense 65
37–45
38–46
41–50
44–53
45–54
49–59
22
Speed 35
22–30
23–31
24–33
26–35
26–36
28–39
14

Congratulations, you've narrowed your Pokémon's stats down exactly!

This Quagsire's Hidden Power inflicts Fighting damage, with 68 power.

And for your copy/pasting pleasure:

1 HP; 20/18 Physical; 26/22 Special; 14 Speed

or start over