Camille's goal is to use terrain angles to threaten (E) engages and short second-(Q) trades to pressure Gragas and deny him a passive lane.
This matchup is a medium agency, medium lane pressure fight where Camille must avoid extended trades before her item spikes and leverage her scaling into side-lane picks and lockdowns.
Trading pattern
Trade around your second (Q) timing, using it as your main damage payoff and disengage immediately after to avoid Gragas's burst and displacement.
Punish Gragas when he wastes (E) or mispositions near terrain by engaging with (E) and locking him down with (R).
Avoid extended trades before your first item spike as Gragas's passive sustain and burst can outlast you in long fights.
Danger windows
Be cautious when (E) is available, as it can stun and interrupt your engage or escape.
Respect (R) displacement, which can break your engage or isolate you if mispositioned.
Avoid committing to trades when your second (Q) is on cooldown or after missing (E), as your damage and mobility are significantly reduced.
Early game
Focus on short trades that land the second (Q) true damage and disengage before Gragas can retaliate with (E) or (R).
Avoid using (E) aggressively unless you have a clean terrain angle and can confirm the stun to prevent being punished by Gragas's burst.
Use (W) outer healing to sustain through Gragas's poke and wait for your first item spike before forcing extended fights.
Power spikes
At first sheen-style item, use your empowered second (Q) to take sharper short trades and threaten side-lane pressure; avoid extended fights before this.
At level 6, use (R) to lock down Gragas after baiting his disengage or key spells, making it harder for him to escape your all-in.
Respect Gragas's level 6 (R) displacement and his first AP or tank item spike, which allow him to disengage or survive your engages more reliably.
Win conditions
Use terrain to secure safe (E) engages that lead into second (Q) trades and disengage before Gragas can retaliate.
After your first item spike, pressure side lanes to create pick opportunities with (R) lockdown and true damage trades.
Deny Gragas's passive sustain by forcing short trades and punishing his cooldowns, then capitalize on your superior scaling and mobility to secure kills or objectives.
Tip: For Camille vs Gragas, read overview, trading pattern, and danger windows first for a fast Top lane check.