I Learned Why People Play Karthus (His Ult...)

Summary

The creator spends 10 hours learning Karthus as a jungler, progressing through normal games, research, and ranked matches. At first, Karthus feels awkward: he has little mobility, his Q takes practice to land, his ultimate often fails to secure kills, and opponents frequently invade him early. Over time, the creator discovers that Karthus’s fast jungle clear, global ultimate, passive, and exceptional scaling make him more capable than expected.

A key breakthrough is focusing on farming rather than forcing plays. Karthus can build a substantial level and CS lead even when his team is behind, then use that advantage to take objectives, punish enemy mistakes, and deal huge damage in fights. The creator still enjoys ganking, but learns to balance it with farming—and to avoid treating Karthus like a mobile initiator.

In ranked, the creator experiments with invading to exploit Karthus’s fast clear and gain a level advantage, while recognizing that this strategy is risky and not suitable for every game. The ranked stretch ends with three wins and one loss. Later, the creator reports a 75% win rate over 20 more Karthus games.

Main Tips and Strategies

• Use W to check bushes: It can reveal potential threats when preparing for objectives or anticipating an invasion.
• Expect invasions—and look for chances to invade back: Karthus clears quickly, so he can punish opponents who leave camps available, especially slower-starting junglers.
• Aim Q deliberately: Read enemy movement and take a moment to place each cast accurately instead of spamming it.
• Use efficient jungle-clearing techniques: Standing in a particular corner near a camp wall can make Q easier to land and reduce damage taken. Karthus’s clear speed can also create opportunities to steal buffs from slower junglers.
• Don’t rely on the passive to justify dying: Karthus can keep dealing damage after death, but good positioning and survival still matter.
• Consider Last Stand: The creator says it can increase damage at low health, including while Karthus is in his passive.
• Play to your advantage: Farm when ganks are unlikely to succeed, then use a level or item lead to contest objectives or punish opponents. Invading can be powerful, but should be chosen carefully.
• Treat Karthus as a mage, not an initiator: He can create pressure without being the one to start every fight.

The video also mentions a typical damage-oriented build featuring Blackfire Torch, Shadowflame, Rabadon’s Deathcap, Void Staff, and Zhonya’s Hourglass. Rune names appear in the subtitles as “Death’s Touch” and “Dark Reaper.”

Featured Gamer and Sources

• EcoreLoL (Ecore): Player and video creator.
• ExitLag: Video sponsor.
• Viewer tip: Suggested the Last Stand rune interaction.
• Ecore’s Veigar video: Referenced as a comparison for learning to avoid forcing plays with a scaling mage.