Runeterra Relics
Caitlyn banner
Piltover & Zaun region icon
Good (7/10)

Caitlyn requires significant investment to reach her full potential. At lower star levels without her signature relics, her trap mechanics suffer from inconsistency. However, fully upgraded with optimal relics, she transforms into a highly effective control champion capable of dominating high-difficulty encounters.

The Sheriff's Arsenal
  • Hextech Rifle icon

    Ensures flashbombs are recycled if they miss, solving her primary consistency issue and accelerating her game plan.

  • Harmless Scarecrow icon

    Allows proactive trap detonation by triggering Terrify when playing cards that cost 3 or more.

  • Hidden Tome icon

    Provides the crucial spell mana needed to immediately cast her 6-star spell, Ace in the Hole, upon summoning her.

Strategy

This is the definitive setup for a fully upgraded Caitlyn. Hextech Rifle is strictly necessary to prevent wasted flashbombs, transforming her reliability. Harmless Scarecrow synergizes perfectly by forcing immediate trap activations via the Terrify mechanic.

Hidden Tome ensures you have the resources to deploy her massive targeted removal spell, Ace in the Hole, the moment she hits the board.

Peacemaker Protocol
  • Echoing Spirit icon

    Floods the deck with additional copies of Caitlyn, reducing the cost of her champion spell.

  • Found Fortune icon

    Draws her champion spell and attaches an Epic item to it, significantly boosting its power.

  • The Grand General's Counterplan icon

    Generates a fleeting copy of Piltover Peacemaker every round.

Strategy

A highly resilient setup focused on spell generation and item stacking, particularly effective before reaching six stars. The Grand General's Counterplan provides constant access to Piltover Peacemaker, while Found Fortune attaches Epic items to it.

Echoing Spirit ensures a steady supply of champions to replay, allowing you to continuously stack items and control the board.

Piltover Patrol
  • The Grand General's Counterplan icon

    Ensures a steady supply of champion spells and allows Caitlyn to be replayed if removed.

  • Stalker's Blade icon

    Provides immediate board control and trap detonation upon summoning.

  • Guardian Angel icon

    Offers a safety net for aggressive blocking and enables additional strike triggers upon revival.

Strategy

A rare-only approach relying on repeated champion deployments. Stalker's Blade provides immediate removal and triggers her Nexus damage effect.

Guardian Angel allows you to aggressively use Caitlyn as a blocker, knowing she will revive and strike again. The Grand General's Counterplan ensures you never run out of resources in prolonged encounters.

Other Relic Options
  • Mischiefmaker's Flute icon

    Players disagree about the effectiveness of this relic on Caitlyn. Some consider its puffcap generation highly synergistic with her trap scaling, while others find it too slow because she does not strike frequently enough to maximize its value.

  • Chemtech Duplicator icon

    Highly effective for duplicating Ace in the Hole at six stars, allowing the copied spell to strike the enemy Nexus if the initial target is destroyed. However, reaching six mana can be too slow for her typical aggressive pacing.

  • Lost Chapter icon

    A reliable alternative to Hidden Tome for newer accounts, providing the immediate spell mana required to cast her signature spells upon deployment.

Constellation

Caitlyn's baseline performance at three stars is heavily reliant on RNG, as flashbombs can frequently miss optimal targets or detonate on empty boards. Her constellation upgrades are transformative, shifting her from an inconsistent trap-setter to a dominant control powerhouse by drastically increasing the sheer volume of flashbombs planted.

  • Icon for Caught In My Trap

    Caught In My Trap

    Your traps deal double damage.
  • Icon for On the Case

    On the Case

    +1 Starting Mana.
    When an ally is summoned or attacks, plant a Flashbomb Trap in the top 8 cards of the enemy deck.
  • Icon for Caught In My Trap II

    Caught In My Trap II

    Your traps deal triple damage.
    Review

    Triples the damage of Flashbomb Traps. This is strictly necessary for her traps to clear enemy boards effectively and is the foundation of her damage scaling.

  • Icon for Officer Backup

    Officer Backup

    Game Start: Summon Sting Officer.
    Review

    Summons a Sting Officer at game start. This provides an immediate blocker and accelerates early trap generation, smoothing out her opening turns.

  • Icon for Manaflow

    Manaflow

    Game Start: Get a mana gem.
    Review

    Grants additional mana, enabling Caitlyn to be deployed as early as turn one. This tempo increase is vital for establishing early board control.

  • Icon for Perfect Aim

    Perfect Aim

    Round Start: Create an Ace in the Hole in hand if you don't have one. When one of your traps activates, reduce its cost by 1.
    Review

    Grants the Ace in the Hole spell. This provides a massive power spike, offering targeted removal and direct Nexus damage that scales with triggered traps. It completely changes her playstyle into a reliable finisher.

Gameplay Tips
  • Exploiting the Switcheroo Mutator

Caitlyn is exceptionally effective in adventures featuring the "Switcheroo" mutator (swapped decks). Her baseline deck lacks inherent synergy for the AI to pilot effectively, and her star powers function independently of the deck she draws, allowing her to easily dismantle the opponent.

  • Maximizing Hextech Rifle Efficiency

Hextech Rifle refunds mana when an activated trap deals overkill damage to a target. Note that traps attached to cards that the opponent "Tosses" do not count as missed traps, as they are never drawn or activated.

  • Synergizing with Support Champions

Prioritize drafting Teemo as a support champion. His ability to plant puffcaps synergizes perfectly with Caitlyn's trap-scaling mechanics, and his presence effectively doubles the damage output of her trap-based strategies.

  • Navigating Wide Enemy Boards

Caitlyn naturally struggles against opponents that rapidly develop wide boards with small units, such as Spider decks. Prioritize drafting powers or items that summon additional blockers to stall the game until flashbombs can thin the enemy ranks.

  • Capitalizing on Health Modifiers

Adventures or Ethereal Remitter powers that reduce all units' health to 1 (such as Mortal Marks) heavily favor Caitlyn. Her flashbombs will consistently wipe the enemy board without requiring targeted removal.

  • Executing the Mill Strategy

Against opponents with exceptionally large units that resist trap damage, pivot to a mill strategy. Utilize cards that force the opponent to draw, burning their deck and hand while simultaneously triggering massive trap chains.