A Stunfisk in the sand with:
Sand Veil Brightpowder Swagger ( for confusing ) and Thunder wave
I want to troll on WIFI with this derp. <3
Well, Sand Veil raises your evasion by 20%, and Brightpowder raises evasion by 10%. In the end, a 100 accuracy attack becomes 72 accuracy. First you have to multiply 100 by 0.2 to get 80%. Then multiply 80 by 0.1 to get 8. Subtract 8 from 80. Answer: 72% When the opponent is swaggered and paralyzed, its accuracy is only 33%
Source: http://pokemon-online.eu/forums/showthread.php?5488-Brightpowder-(On-Garchomp), http://strategywiki.org/wiki/Pokémon/Competitive_battling/Move_Combinations#Parafusion