Jayce
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Good (7.5/10)
High Investment Required
Epic Relics
Paid Relics
Jayce is a late-blooming spellcaster who requires significant constellation investment to overcome a slow early game. Once fully upgraded, his ability to duplicate high-cost spells provides immense board control and burst damage.
Hextech Artillery
Provides a massive mana refill upon leveling up, enabling immediate follow-up plays.
The cornerstone of Jayce's strategy, doubling his 6+ cost spells once the six-mana threshold is reached.
Synergizes perfectly with his core mechanic, refunding mana whenever a 6+ cost spell is played.
Strategy
This optimal setup maximizes mana generation and spell duplication. Jayce's Hextech Battery provides a crucial mana refill upon leveling up, establishing immediate tempo.
Renewing Power is highly synergistic, refunding mana whenever a 6+ cost spell is played. Once the player reaches six mana gems, Chemtech Duplicator activates, allowing Jayce to dominate the board with duplicated 6-cost spells while maintaining a full mana pool for subsequent actions.
Early Deployment
Reduces Jayce's cost by damaging allies, allowing him to hit the board significantly earlier.- Essential for doubling spells in the later stages of the encounter.
Provides the necessary spell mana to cast high-impact spells once Jayce is deployed.
Strategy
Designed to bypass Jayce's slow early game, Disciple of Shadows allows for a Turn 1 or Turn 2 summon by sacrificing early units.
Hidden Tome ensures early spell mana is banked. This establishes early board presence and accelerates his level-up condition while waiting for the six-mana threshold to activate Chemtech Duplicator.
Cryogenic Duplication
Delays Jayce's arrival, allowing him to be summoned for free on a later turn.- Doubles all spells once the mana threshold is met.
- Ensures early spell mana availability, allowing Jayce to cast his expensive spells sooner.
Strategy
This combo-oriented build delays Jayce's arrival until Frozen Tomb releases him. By the time he thaws, the player is closer to the six-mana threshold for Chemtech Duplicator.
This allows Jayce to enter the board without spending mana on that turn, leaving all resources available for casting massive, duplicated spells.
Zoe Challenger
Zoe Specialized
- Provides a massive mana refill upon leveling up.
- Essential for doubling spells to keep pace with Zoe's board.
Crucial for aggressively rerolling for essential mana-generating adventure powers.
Strategy
Specifically tailored for the 10-star Zoe adventure. Loaded Dice is crucial here to aggressively reroll for essential mana-generating adventure powers like Sorcery or Manaflow, and to avoid detrimental powers.
Jayce's 6-star power is less effective against Zoe's wide board of small units, making early Chemtech Duplicator activation the primary win condition.
Standard Spellcaster
- The primary win condition, doubling spells at six mana gems.
Ensures a steady supply of spell mana to cast expensive spells.
Provides a consistent stream of champion spells to utilize the mana and duplication effects.
Strategy
A highly effective build using only Rare relics. The Grand General's Counterplan provides a steady stream of champion spells, while Archangel's Staff ensures the spell mana required to cast them.
Survival until turn six is critical to activate Chemtech Duplicator and overwhelm the opponent.
Other Relic Options
A Plunder enabler that reduces his cost for faster deployment.
Can be combined with Strength of Stone and Jayce's Hextech Battery to reach the Titanic threshold for an early mana gem.
Used primarily to boost Jayce's health to activate Starforged Gauntlets.- Highly valuable on a fully maxed Jayce to aggressively reroll for essential mana-generating adventure powers like Sorcery or Manaflow.
Constellation
Jayce's constellation path demands heavy investment. At lower star levels, his high mana curve makes early turns awkward and vulnerable. However, unlocking his higher-tier stars transforms him into a formidable engine capable of overwhelming opponents with duplicated spells and generated keywords.
Hyper Charge
When you play a 6+ cost spell, reduce the cost of non-spells in your hand by 1.
Unstable State
+1 Starting Mana. Round Start: Create a Hextech Anomaly in hand if you don't already have one you created this way.
Hyper Charge II
When you play a 6+ cost spell, reduce the cost of non-spells in your hand by 1, then give allies +1|+0 and a random keyword this round.
Gearing Up
Game Start: Summon 2 Armed Gearhead.Review
This upgrade enables Turn 1 plays when combined with cost-reduction relics like Disciple of Shadows or Plunder setups. While getting Jayce on the board early is helpful, its immediate impact is limited since 6-cost spells are rarely playable on the first turn.
Manaflow
Game Start: Get a mana gem.Review
A crucial upgrade for Jayce's mana economy. It provides the necessary acceleration to play early defensive units while still banking enough spell mana to cast a 6-cost spell by Turn 2.
Hextech Infusion
After you play a 6+ cost spell, deal 10 to a random enemy or the enemy Nexus if there is none.Review
Players disagree about the reliability of this power. Some consider its random targeting a liability that wastes damage on low-threat targets or already-dying units. While others value its massive burst potential, noting that when combined with Chemtech Duplicator, it can easily deal 30 damage to close out games.
Gameplay Tips
- Avoid Cost Reduction Powers
Powers that reduce the cost of spells can actively sabotage Jayce. If a 6-cost spell is reduced to 5 mana, it will no longer trigger his core duplication mechanics. Avoid powers like Glorious Evolution or Searing Brilliance unless you have a specific workaround.
- Prioritize Lifesteal
Jayce's early game is slow, meaning the Nexus will often take damage. Focus on generating Lifesteal through his Hexgate to recover health in the later stages of the encounter.
- Drafting is Critical
Jayce's entire strategy revolves around 6+ cost spells. Prioritize reward nodes and shops that offer high-impact, expensive spells to ensure his duplication engine has enough fuel. Aggressively reroll for Sorcery or Manaflow, and strictly avoid Spellslinger or Wild Inspiration.
- Level-Up Acceleration
The Chemtech Duplicator relic and Jayce's inherent star power that clones big spells both count towards his level-up condition, creating strong synergy for faster champion progression.
- Quest Progression Quirk
When Jayce or Chemtech Duplicator copies a spell, the duplicated cast does not count toward "spend mana" daily or event quests.