Guide · the Deathsinger
Karthus
A practical Karthus playbook using Riot kit references and MacroDiff interpretation. Check the role, review date and patch context below.
MACRODIFF PLAYBOOK
How to think about Karthus
Strengths, limits and power windows before you copy a build.
Strength profile
Scaling value
Scaling 3/3 indicates how much the kit classification values longer fights, levels or completed items. It is not a guaranteed late-game win rate.
AP damage identity
MacroDiff classifies the current profile as AP. Use that fact when checking team damage balance; it does not replace item- or ability-level scaling details.
Control chain
Crowd-control signal 1/3 makes timing with allied setup or follow-up especially valuable. Avoid overlapping the same control window without a reason.
Watch-outs
Do not borrow a frontline job
Frontline is 0/3. If allied durability is low, solve positioning and target access before volunteering to absorb the first contact.
Limited protection after commitment
Peel is 0/3. Spending the key control or mobility tool aggressively can leave no answer for the return engage.
Prefer follow-up to forced entry
Engage is 0/3. When the team lacks a clean opening, let another source create contact and use Lay Waste on the confirmed window.
Power windows
Levels 1–2
Establish Lay Waste
The max-order reference is Q → E → W, not necessarily the opening skill order. Check the actual ability learned, range and resource cost before trading.
Early skill points
Check the learned abilities
Do not assume all three basic abilities have been learned. Check the actual skill allocation and each tool's conditions before practicing an entry, follow-up or disengage.
R availability
Requiem changes the decision tree
Riot's current description: After channeling for 3 seconds, Karthus deals damage to all enemy champions. Decide whether the cast creates access, protection, damage or an exit before using it.
Completed core
Re-check the team job
After the core build comes online, compare engage 0/3, peel 0/3, scaling 3/3 and frontline 0/3 again. Items can change priority without changing champion identity.
ROLE PLAN
Lane and tempo checklist
Clear with the next lane in mind
Lay Waste anchors the first clear pattern. Route toward lanes that can convert your crowd control 1/3 or damage profile instead of clearing without a next decision.
Trade map information
When the opposing jungler appears, immediately compare nearby camps, lane priority and the next neutral objective. Do not force a mirrored response when the opposite side is more valuable.
Enter objectives with a job
Decide before contact whether the job is engage (0/3), peel (0/3), or damage follow-up. Save the tool that serves that job. When Requiem is available, read its actual purpose before committing; not every R is an engage or escape.
5V5 PLAN
Team-fight responsibilities
Let contact become visible
Engage 0/3 favors a follow-up posture. Keep Lay Waste available until the first threat and target are clear.
Preserve an exit
Peel 0/3 means the kit may not rescue a bad entry. Keep movement, range or terrain between Karthus and the return threat.
Re-evaluate after the first cooldowns
The first exchange changes health, spacing and available tools. Pause long enough to choose between continuing, peeling back or changing target; do not replay the opening automatically.
COMMUNITY LAYER
Karthus guides
Long-form decisions from MacroDiff editorial and community authors.
No reviewed analysis is available for this scope yet.
The champion hub is ready; the first reviewed Karthus community guide will appear here.