Change your preferences here.
Deals damage and has a 30% chance to paralyze the target.
Spark lost its lone competitive niche as Luxray's only usable STAB attack when Wild Charge was introduced this generation. Its 30% paralysis rate is neat and all, but you'll almost always want the larger Base Power Wild Charge provides.
ThunderPunch is a more powerful alternative.
Wild Charge is a more powerful alternative, but causes recoil damage to the user.
Body Slam also has a 30% chance to paralyze the opponent.