강철 (Gangcheol) - Meaning "strong steel," evoking strength and resilience.

검객 (Geomgaek) - Meaning "sword master," suggesting skill and precision.

영웅 (Yeonghung) - Meaning "hero," a classic and powerful name.

폭풍 (Pokpung) - Meaning "storm," representing intensity and unpredictability.

전설 (Jeonseol) - Meaning "legend," implying a player destined for greatness.

무적 (Mujeok) - Meaning "invincible," conveying an aura of dominance.

천재 (Cheonjae) - Meaning "genius," suggesting exceptional talent.

승리 (Seungri) - Meaning "victory," a straightforward and aspirational name.

불멸 (Bulmyeol) - Meaning "immortal," symbolizing lasting impact.

명예 (Myeongye) - Meaning "honor," reflecting a commitment to fair play.

These names offer a blend of strong imagery and meaningful connotations, suitable for a professional League of Legends player. The choice will depend on the player's preferred style and personality. Consider the sound and feel of each name in relation to the player's in-game persona.