Camille vs Mordekaiser Top Matchup

Why Mordekaiser is favored

Mordekaiser can extend trades when Camille has spent Hookshot(E), and his Realm of Death(R) can force the duel she usually tries to avoid. Its 650 range also exceeds Camille's 475-range ultimate, so if he casts from outside her range she cannot use R to dodge the banishment.

Measured in High Elo: Mordekaiser wins 1.5pp more often than expected over 1,381 games.

How to play as Camille

After level 6, avoid using Hookshot(E) to start a long trade while Mordekaiser can ult you. Take short trades after he misses Death's Grasp(E) or Obliterate(Q), and back off if he starts winning the extended fight.

If Mordekaiser starts Realm of Death(R) while he is within your 475-range, time Hextech Ultimatum(R) to dodge its cast; if he casts near the edge of his longer range, he is outside your R targeting range, so use Hookshot(E) and Q movement speed to kite instead.

Realm of Death(R) isolates Camille in a separate duel, so her teammates cannot follow up while she is inside.

How to play as Mordekaiser

If Camille still has Hextech Ultimatum(R), cast Realm of Death(R) near its maximum range; your 650 range exceeds her 475 range, so she cannot target you to dodge the cast from there. Once in the Realm, keep Indestructible(W) for her empowered Q2 and extend the fight.

Realm of Death(R) has 650 range, longer than Camille's 475-range Hextech Ultimatum(R), so from the edge of his range he can cast outside her ultimate's targeting range.

Sources

These notes come from r/CamilleMains and r/MordekaiserMains, checked against the champions' abilities.