9 Kings: Joker Mode Custom Deck Building and Strategy

In the 1.0 release of 9 Kings, Joker Mode removes standard monarch drafting restrictions, allowing you to build a starting deck using cards from every faction library. To win consistently, your custom deck must balance low-cost frontline defenders, continuous gold generation, and high-impact ranged damage. Avoiding deck dilution from the preparation screen ensures your draws remain consistent against aggressive early waves and scaling late-game bosses.

Core Archetypes for a Stable Starter Deck

In standard runs, picking a monarch such as the King of Blood or King of Spells confines your card pool to a single archetype unless rare rainbow cards appear. The King of Jokers bypasses these limits, but drafting too many expensive win conditions can leave your kingdom defenseless.

A dependable starting deck requires cards that fill three functional roles immediately, supported by utility tools to refine your hand later in the run.

Card Role	Tactical Purpose	Recommended Units and Structures	Timing Priority
Frontline Blocker	Absorb incoming wave aggro and delay enemy advances	Durable, low-cost units like Iron Soldiers or Paladins	Immediate (Years 1–5)
Economy Engine	Produce continuous gold to fund territory and card upgrades	Passive resource structures like Mines or Farms	Immediate
Backline DPS	Eliminate approaching enemies from behind defenses	Long-range siege pieces like Ballistas or Spire artillery	Early to Mid Game
Deck Control	Remove low-value cards and buff active units	Targeted removal spells like Execution or stat auras	Mid to Late Game

High-Impact Cross-Faction Synergies

Because Joker Mode eliminates faction boundaries, you can combine mechanical engines that are normally segregated.

Swarm and Sacrifice: Pair disposable frontline fodder like Skeletons or Peasants with Blood Altars. This generates heavy combat buffs and secondary resources on death without the high gold upkeep required by elite units.
Crowd Control and Heavy Artillery: Combine King of Spells elemental debuffs or nature root effects with physical artillery like ballistas. Slowing incoming packs gives backline siege weapons enough time to clear dense waves before they breach your perimeter.
Stall and Economic Scaling: Use defensive nature foliage to bottleneck attackers while scaling income with dwarven Mines. Stalling early pressure allows your economic engine to mature without taking structure damage.

Territory Grid Placement

Placing your units and structures correctly on the board is just as critical as your starting card draft:

Vanguard Frontline: Place high-health tanks on the forward-most tiles facing the anticipated enemy path. This anchors hostile units immediately and prevents them from targeting fragile backline pieces.
Buffer Support: Position aura-granting structures and support units directly behind the front rank. Centering them maximizes their coverage area over both your blockers and backline damage dealers.
Rear Economy and Artillery: Build resource generators, such as Mines and Libraries, in the deepest rear corners of your territory. Placing them behind your defensive line shields them from melee attacks and stray ranged hits. Position long-range artillery just ahead of these buildings so they can fire across your entire defensive zone.

Deck Thinning and Late-Game Scaling

As your run progresses toward high-tier encounters like King IX IX, early tempo cards become low-value draws that clutter your rotation. Maintain deck efficiency by taking these actions:

Purge Obsolete Cards: Use removal events or spells like Execution to permanently eliminate basic starter units that no longer match enemy scaling.
Prioritize Board Upgrades Over New Drafts: In the late game, spend your gold upgrading existing board tiles and high-synergy structures rather than drafting marginal cards into your deck.
Preserve Draw Consistency: Keep your total card count compact so critical carry cards and defensive reactions cycle into your hand every round.