A powerspike is a moment when a champion becomes noticeably stronger, often due to reaching a key level or completing an important item. Many champions gain their first major spike at level six when they unlock their ultimate, while others have later spikes tied to their Scaling, such as Kayle becoming far more dominant at level sixteen.
Reaching a powerspike allows a champion to pressure their opponent, look for a favorable Trade, or dictate the tempo of the Early game and beyond. Understanding both your own spikes and those of the enemy helps you choose when to fight, when to avoid skirmishes, and how to capitalize on important timing windows.