Jax
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Good (7/10)
Rare Relics OK
Jax is a highly aggressive champion who excels at clearing early-to-mid difficulty encounters rapidly. However, his linear playstyle and reliance on equipment can feel repetitive, and he struggles to maintain dominance in the highest-difficulty Nightmare adventures without significant constellation upgrades.
Aggressive Weaponmaster
Provides Overwhelm and bonus stats to all Weaponmaster units in the deck.
Guarantees a Rally upon Jax's level-up, enabling immediate game-ending attacks.
Continuously forges Jax's weapon to scale his stats and provides a burst-speed barrier.
Strategy
This build maximizes Jax's aggressive potential. The Beast Within is highly effective because Jax's deck is primarily composed of units with the Weaponmaster subtype, granting them all a permanent stat boost and Overwhelm. Crownguard Inheritance is a core component, allowing Jax to attack, level up, and immediately attack again to close out the game.
Players disagree about Living Weapon. Some consider its continuous forging and burst barrier essential for scaling Jax into a massive threat and transferring those stats if he is removed. While others find it too slow for his ideal fast-paced game plan, preferring Laurent Bladerack for immediate board control.
Stat Scaler
Provides consistent scaling and keyword generation over longer encounters.
Grants Fated and massive keyword bonuses once Jax reaches 10 power.- Continuously forges Jax's weapon to scale his stats and provides a burst-speed barrier.
Strategy
This build focuses on keyword generation and stat scaling. Perfect Hex Core provides consistent scaling over longer encounters, synergizing with Chosen by the Stars to create an overwhelming unit.
Living Weapon ensures that even if Jax is removed, the accumulated stats can be transferred to another unit, maintaining a strong board presence.
Destiny Spellcaster
Creates Wild Cards in the deck to provide continuous stat scaling and card draw.
Draws a low-cost card, grants it an Epic item, and reduces its cost to 0.
Creates 7 copies of Jax in the deck and reduces the cost of his champion spell.
Strategy
This alternative approach transforms Jax into an engine for drawing and casting his champion spell. Deck of Destiny and Found Fortune work together to consistently draw cards and generate value, while Echoing Spirit ensures a high density of Jax copies in the deck to fuel the champion spell generation.
This setup provides excellent board control through continuous stuns and buffs, making it particularly effective in longer, high-difficulty encounters where Jax's standard aggressive strategies might stall. Cutting 1-cost units from the deck during the adventure improves the consistency of Found Fortune.
Accessible Challenger
- Provides a crucial Rally effect when Jax levels up.
Grants Challenger to all allies, allowing Jax to dictate favorable trades.
Ensures that excess damage from Jax's high-power attacks pushes through to the enemy Nexus.
Strategy
A highly effective setup for newer accounts using only Rare relics. Laurent Bladerack is exceptional for board control, allowing Jax and his equipped allies to pull vulnerable enemy units and protect smaller allied units.
Crownguard Inheritance provides the standard Rally on level-up for burst damage, and Troll King's Crown acts as an accessible substitute for The Beast Within, ensuring that high-attack units can push damage through blockers.
Other Relic Options
Excellent for specific adventure modifiers that deal continuous small damage, allowing Jax to scale his stats rapidly.
Recommended for increasing his stats and enhancing his scaling potential by consuming weaker equipped units.
A viable alternative for boosting the stats of all units, synergizing well with his equipment.
Constellation
Jax is a formidable champion at his baseline 3-star level, capable of executing rapid victories in standard adventures. However, his power level plateaus in the late-game of Nightmare difficulty adventures, requiring further constellation investment to keep pace with inflated enemy stats. His strength relies heavily on empowering his board presence rather than just himself.
Last Light of Icathia
Allies have "Attack: Grant me +1|+0. If I am equipped, also grant my equipment +1|+0."
Relentless Assault
+1 Starting Mana. When an equipped ally dies, draw 1.
Last Light of Icathia II
Allies have "Attack: Grant me +1|+1. If I am equipped, also grant my equipment +2|+0."Review
Considered one of the best 3-star champions for fast clears, though his scaling is conditional and combat-based, which can make him challenging in deadly encounters.
Gameplay Tips
- Manage Equipment Draw
Jax's deck features a mechanic that draws a card when an equipped ally is defeated. Carefully manage the number of weapon-generating cards added during an adventure to prevent clogging the hand with unplayable equipment.
- Ephemeral Copy Interactions
Equipment in Legends of Runeterra is unique. If an effect creates an Ephemeral copy of Jax upon summoning (such as the Shadow Totem item), the copy will take the weapon, leaving the original Jax unequipped. This prevents the original from contributing to his level-up condition.
- Vulnerability to Direct Damage
Despite the health buffs provided by equipment, Jax's base health is relatively low. He remains highly susceptible to direct damage spells and pings from the opponent, requiring careful timing when deploying him against removal-heavy regions.
- Attachment Anti-Synergy
Units can only hold one equipment or attachment at a time. Playing an attach unit (like Yuumi) onto Jax will automatically unequip his signature weapon, disrupting his core synergies.
- Monthly Challenge Utility
Jax is highly effective in monthly challenges with the 'Small Stuff' (all units are 1/1) or 'Only the Strong' modifiers, as his equipment and buffs allow him to easily bypass these restrictions and consolidate power onto a single unit.