Magnezone @ Damp Rock
Ability: Analytic
EVs: 4 Def / 252 SpA / 252 Spe
Timid Nature
-
Rain Dance
-
Thunder
- Hidden Power Grass
- Volt Switch / Flash Cannon / whatever
makes a decent rain lead on rain teams although they aren't very common nowadays. i'm not the best at conjuring up ev spreads so this one is probably trash but max speed and special attack so that it's as fast as possible and so that it can deal a lot of damage. with rain dance, magnezone can go for thunder > thunderbolt for more power.
252 SpA Magnezone Thunder vs. 252 HP / 176 SpD Mega Slowbro: 356-420 (90.3 - 106.5%) -- guaranteed OHKO after Stealth Rock
252 SpA Magnezone Thunder vs. 0 HP / 0 SpD Manaphy: 360-426 (105.5 - 124.9%) -- guaranteed OHKO
252 SpA Magnezone Thunder vs. 252 HP / 0 SpD Volcanion: 392-464 (107.6 - 127.4%) -- guaranteed OHKO, although rain should already be present otherwise magnezone can get koed by fire blast !_!