Shadow Zebstrika

Shadow Zebstrika just doesn't have the raw power needed to excel. It's a great looking Pokemon, especially with the Shadow aura and red eyes, but it's just not worth the cost.

Best PvE Offensive Moveset

• Spark benefits from STAB and is the superior fast move.
• Low Kick doesn't have much use. 
• Wild Charge is the best Electric-type charge move, and also gets STAB. 
• Discharge isn't too far behind, and it being a 3-bar move makes it more accessible. 
• Flame Charge is a bad move in general, TM this. 

Best PvE Defensive Moveset

• Spark and Low Kick are both poor moves for defense, but the former gets STAB which makes it the better choice.
• Discharge is the best charge move for defense due to it being a 3-bar move, and can be spammed frequently.
• Wild Charge hits harder, but being a 2-bar move means it's used less often.
• Flame Charge is horrible for defense. 

Spark is the preferred fast move due to its higher energy gains and benefiting from STAB. Low Kick is a very poor move for PvP.

Discharge costs the least amount of energy among Zebstrika's charge moves, which makes it more accessible. Wild Charge only costs 5 more energy, but deals significantly more damage if unshielded. Flame Charge isn't a great move in PvP due to its poor damage for its energy cost (1.4 DPE), but does offer some niche coverage which could be useful in certain formats.