Mordekaiser aims to control the lane through wave manipulation and threat of (E) pull to force extended trades where his passive and (W) shield sustain excel.
This matchup is a control vs teamfight duel where Mordekaiser must deny Sion safe scaling by maintaining medium lane pressure and forcing fights inside his passive range.
Trading pattern
Start trades by threatening or landing (E) to pull Sion into your zone, then hit isolated (Q) for max damage.
Keep passive active during trades to out-sustain Sion's physical damage and shield.
Avoid engaging when (E) is on cooldown or if (W) shield is up and ready to absorb damage.
Danger windows
Be cautious when Sion has charged (Q) ready from fog or brush angles; avoid standing in obvious charge paths.
Respect (R) engage window, especially if he has a clear path and team follow-up.
Avoid committing to fights when (E) is missed, as your engage threat and trade potential drop significantly.
Early game
Use early waves to position for (E) pulls and punish Sion when his (W) shield is down.
Avoid walking forward without (E) ready to prevent giving Sion easy charged (Q) knockups.
Prioritize slow pushing the wave to create opportunities for isolated (Q) damage and extended trades before level 6.
Power spikes
Level 6 (R) unlocks forced isolation duels; use it after landing or threatening (E) to trap Sion away from team help.
First AP bruiser item increases sustained damage and durability; force longer trades when (E) or wave state keeps Sion nearby.
Respect Sion's level 6 (R) engage and his health scaling from (W) stacks; avoid extended trades when his shield is active.
Win conditions
Use wave and (E) pull pressure to force extended AP trades where your passive and (W) shield give you the edge.
After level 6, isolate Sion with (R) to force duels he cannot kite or survive alone.
Deny Sion calm scaling by punishing missed (E) and (W) cooldowns, then transition lane control into side lane duels and teamfight frontline threat.
Tip: For Mordekaiser vs Sion, read overview, trading pattern, and danger windows first for a fast Top lane check.
