Slay the Spire 2 Regent Builds: Stars vs Forge — Pick One and Commit

The Golden Rule of Regent

Pick Stars or Forge. Never both.

I’m putting this right at the top because it’s the single most common reason Regent runs die. The two archetypes pull in completely opposite directions. Stars wants you to hoard a secondary resource and play expensive payoff cards. Forge wants you to invest everything into one weapon. Splitting your card picks between them means you’re bad at both.

If you take one thing from this guide: decide by the end of Act 1 which path you’re on, and ignore cards from the other.

How Regent Works

Regent starts at 75 HP with a starting relic called Divine Right, which gives you 3 Stars at the beginning of every combat. Stars are a secondary resource completely separate from Energy. They don’t reset at the end of your turn — they accumulate, up to a maximum of 24.

Some Regent cards cost Stars instead of (or in addition to) Energy. These Star-cost cards are very powerful, but they demand setup. You can’t just play them on turn one.

Forge is the other half. The first Forge card you play in a combat creates the Sovereign Blade — a 2-Energy Retain attack that starts at 8 damage and stays in your hand between turns. Every subsequent Forge card permanently increases its damage for that combat. One weapon, one focus.

Both paths work. Neither works if you split the difference.

Stars Build — The Resource Manager

Stars play like nothing else in Slay the Spire. You’re managing two economies at once — Energy for your regular cards and Stars for your power plays. The payoff cards are absurdly strong, but they need 8, 12, even 16+ Stars to activate. Your job is generating Stars fast and spending them at the right moment.

Core Cards

• Celestial Surge — Generates a large burst of Stars. This is your primary Star income outside of Divine Right. Taking 2 copies is not greedy, it’s necessary.
• Astral Judgment — High Star cost, massive damage. This is one of your main reasons to play Stars. When you drop 12+ Stars on this card, it hits like a freight train.
• Star Shield — Spends Stars for a large amount of Block. Your defensive payoff card. When you’re sitting on 15 Stars and need to survive a big hit, Star Shield converts your entire Star pool into survival.
• Constellation — Generates Stars over multiple turns through a passive effect. Slower than Celestial Surge but consistent. Good for longer fights where you need repeated Star income.

Supporting Cards

• Stellar Draw — Card draw that also generates a few Stars. Solves two problems at once. You need to find your payoff cards AND have Stars to spend.
• Radiance — A solid attack that gains bonus damage based on your current Star count. Works as a mid-range damage card while you’re saving Stars for your big play.
• Minor Stars — Low-cost Star generation. Not exciting, but filling your Star pool a few points at a time adds up across turns.

How to Pilot It

Early combat is pure accumulation. Play your cheap Energy cards for block and minor damage while Stars pile up from Divine Right and generators. Around turn 3-4, you should have enough Stars for a big payoff card. That’s your spike turn.

The decision tree: do you spend Stars on offense (Astral Judgment) or defense (Star Shield)? Read the fight. If the enemy is winding up a massive attack, shield. If they’re vulnerable or low HP, nuke them.

Relic Synergies

• Relics that give Energy or card draw are strong because your Star generation runs on its own timeline. You want Energy for regular cards so Stars go entirely toward payoffs.
• Relics that trigger on-kill effects pair well with Astral Judgment’s burst damage.

Common Pitfalls

Hoarding Stars too long. I’ve watched players sit on 20+ Stars for 3 turns, taking damage they didn’t need to, waiting for the “perfect” moment. If Star Shield would save you 30+ HP, play it. You’ll generate more Stars.

Not enough Star generation. Divine Right gives 3 per combat, not per turn. If your only Star income is the starting relic, you’ll have 3 Stars the entire fight. You need Celestial Surge, Constellation, or other generators. Without them, your payoff cards are dead draws.

Taking Forge cards “just in case.” Don’t. Every Forge card in a Stars deck is a wasted card slot that could be a Star generator or payoff.

Forge Build — One Blade to Rule the Run

Forge is the more straightforward Regent archetype. Play a Forge card, create the Sovereign Blade. Play more Forge cards, make it permanently stronger. By mid-combat, you’re swinging a Retain attack for 30, 40, 50+ damage every single turn. It stays in your hand. It just keeps getting bigger.

Core Cards

• Blazing Anvil — The best Forge card. Gives +2 Forge per turn automatically. Play this early in a fight and the Sovereign Blade grows without you spending more cards on it. If I see Blazing Anvil in Act 1, I’m locked into Forge for the run.
• Seeking Edge — Premium single-use Forge. Adds a large chunk of damage to the Sovereign Blade in one play. Your high-quality, one-time boost.
• Beat into Shape — Another solid Forge source. Reliable, does what it says. Take multiple copies in Act 1 when you need to get the Blade online fast.
• Tempered Steel — Provides Forge and adds Block. Defense plus Blade investment in one card. Exactly what you need in the early turns of a fight.

Supporting Cards

• Sovereign Blade (created by first Forge card) — 2 Energy, Retain, starts at 8 damage. This is your weapon. It never leaves your hand. Every Forge card makes it hit harder permanently for that combat.
• Block cards from the Regent pool — whatever keeps you alive while the Blade grows. You don’t need fancy synergies on the defensive side, just reliable Block.

How to Pilot It

Turn 1-2: Play your first Forge card to create the Sovereign Blade. If you have Blazing Anvil, play that too. These early turns are about investment.

Turn 3+: Start swinging. The Blade should be at 15-20+ damage by now. Play it every turn while using your remaining Energy on Block and Forge cards. The Blade’s Retain means it never gets stuck in your discard pile — it’s always available.

Mid-combat: If Blazing Anvil is running, the Blade is growing automatically. You can focus entirely on blocking and playing the Blade for damage. The Forge engine runs itself.

Where Forge Excels

Boss fights. Long, single-target fights are where Forge pulls ahead. The Blade keeps growing every turn, so a fight that goes 8-10 turns means your Blade might be swinging for 60+ damage per turn by the end. Bosses can’t block it. They can’t remove it from your hand. They just take it.

Forge also has a simpler decision tree than Stars. You don’t manage a secondary resource. You invest in the Blade, then ride it.

Where Forge Struggles

Multi-enemy fights in Act 2. The Sovereign Blade is a single-target attack. Rooms with 3-4 enemies mean you’re killing them one at a time while taking hits from the rest. You need AoE cards from the neutral pool or enough Block to absorb the punishment.

Relic Synergies

• Relics that reduce card cost — Cheaper Forge cards mean more Forge per turn means a bigger Blade.
• Relics that grant Energy — 2 Energy for the Blade leaves you with 1 Energy for everything else. More Energy means you can Forge AND block on the same turn.
• Retain-related relics — Anything that rewards holding cards between turns synergizes with the Sovereign Blade’s Retain.

Common Pitfalls

Playing Forge cards without blocking. Yes, the Blade needs to grow. But you start at 75 HP and Regent has no self-heal in the starting kit. If you spend 3 turns Forging and take 40 damage, your 30-damage Blade doesn’t matter because you’re dead in two more turns.

Taking Star cards in a Forge deck. I keep saying it because people keep doing it. That Star generator is a dead card. Take a block card instead.

General Regent Tips

• Make your archetype decision in Act 1. If your first two card rewards are Forge cards, go Forge. If you see strong Star generators early, go Stars. Let the run tell you.
• Divine Right’s 3 Stars still exist in a Forge build — they’re just irrelevant. Don’t try to “use” them. They sit there. That’s fine.
• Regent is squishy. 75 HP with no built-in healing means elite fights can chunk you hard. Don’t skip rest sites to upgrade when you’re at 40 HP.
• The Sovereign Blade’s Retain is one of the strongest mechanics in the game for consistency. In a Forge build, you always have your best attack. Every turn. No variance.
• Check our Boss Strategies guide for Regent-specific boss tips, and our Relic Tier List for which relics matter most by archetype.