Raichu @ Fightinium Z / Life Orb
Ability: Lightning Rod
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk  or 29 HP / 0 Atk
- Thunderbolt
- Hidden Power [Ice]
- Focus Blast
- Nasty Plot

Other move options: Signal Beam, Surf, Substitute
Other item options: Choice Scarf, Electrium Z, Waterium Z
Notes: Surf and Nasty Plot are incompatible. Surf can only be obtained through event Pikachu while Nasty Plot can only be obtained as a Pichu.
Life Orb boosted Hidden Power Ice at +2 and Z-Focus Blast at +2 both OHKO physically defensive Tangela
Substitute allows Raichu to avoid being KO'd by Shiftry's Sucker Punch.
A Choice Scarf set outspeeds Adamant Sand Rush Stoutland, but fails to OHKO with Focus Blast and is otherwise outclassed by other electric scarf users.