Raichu@Choice scarf
Lightningrod
Timid
252Sp.A 252Spe 4HP
-Thunder
-Hidden Power [ground]
-Focus Blast
-Signal Beam

This is for my rain team to take care of Electric and Water pokemon (and Grass?).I don't know if I should use Signal Beam but I don't know what I can use instead.

The idea is to switch in on a electric attack and use hidden power (or come in after one of my pokemon faints ).
I'm going to use this in game and at the PWT so I thought I could use my new lightningrod raichu.

(P.S. does anyone have a mantine move set?)