The undisputed best starting cards in Once Upon a Card are Swift Strike, Parry, and Scrounge. This trio guarantees a balanced foundation of offense, defense, and resource management that is essential for surviving the critical first few floors of the Spire. While other cards have their place, mastering these three will dramatically increase your chances of reaching the first boss, the Grinning Golem, and beyond.
This guide breaks down not just which cards to pick, but the strategic thinking behind why they work. We'll cover the top-tier picks that should be instant additions to your deck, solid role-players to look for, and the common traps that can end a promising run before it even begins.
Before the Cards: Which Hero Should You Pick?
Your starting hero dictates the initial flavor of your deck and what cards will be most effective early on. While all heroes can use the core cards we recommend, their unique abilities and starting decks give them different advantages.
- The Valiant Knight: Starts with higher HP and a deck focused on straightforward Attack and Block cards. He excels at mitigating damage and winning battles of attrition. His starting relic, the Knight's Crest, grants him 1 extra Block whenever he plays a Block card, making him incredibly durable.
- The Keen-Eyed Ranger: Begins with a deck that includes utility cards for applying debuffs like Vulnerable (target takes 50% more damage) and Weak (target deals 50% less damage). Her starting relic, the Elven Quiver, lets her draw an extra card on the first turn of each combat, giving her more options right away.
- The Apprentice Mage: The most complex but potentially most powerful starter. The Mage uses Mana as a secondary resource to power up spells. His starting deck is weak on direct damage but includes cards to generate Mana. His relic, the Mana Crystal, gives him 1 free Mana at the start of each combat.
For absolute beginners, the Valiant Knight is the most forgiving choice. His high health and simple mechanics allow you to focus on learning enemy patterns and card fundamentals without juggling extra resources like Mana.
The Unquestionable S-Tier Starters
Regardless of your chosen hero, some cards are so universally powerful in the early game that you should almost always take them when offered as a reward. These cards are efficient, flexible, and solve the most common problems you'll face in the first act, from dealing with high-damage Goblins to managing your limited resources.
Swift Strike: The Perfect Offensive Opener
- Cost: 1 Energy
- Effect: Deal 7 damage. If the enemy has Vulnerable, draw 1 card.
Swift Strike is the gold standard for early-game offense. For a single energy, it deals a respectable 7 damage, enough to one-shot weaker enemies like Grave Rats. Its real power, however, lies in its secondary effect. Pairing it with any source of Vulnerable (like the Ranger's starting Pinning Shot or a found Gouge card) turns it into a damage-dealing card that replaces itself in your hand. This cycling effect is incredibly powerful, letting you dig for your defensive cards or other attacks without losing tempo. It's an auto-pick every time.
Parry: Your Get-Out-of-Jail-Free Card
- Cost: 1 Energy
- Effect: Gain 6 Block. Apply 1 Weak to one attacking enemy.
Many early runs end when a Spire Goblin or Armored Sentry lands a single, massive hit. Parry is the premier tool for preventing this. It provides a solid 6 Block, but its true value is the application of Weak. An enemy dealing 12 damage will instead hit for 6, which your Block can then easily absorb. This completely neutralizes the biggest threat from many early-game elites and gives you the breathing room needed to set up your own attacks. It's a defensive powerhouse that often saves you more health than a simple high-value Block card.
Once Upon A Card in-game screenshot
Scrounge: The Engine of Your Economy
- Cost: 0 Energy
- Effect: Choose One - Gain 5 Gold OR Draw 1 card.
Zero-cost cards that cycle are among the most powerful in any deckbuilder, and Scrounge is a perfect example. Early on, the 5 Gold option is invaluable. Grabbing Scrounge after your first two fights can mean having enough gold to remove a basic Strike card at the first merchant, a crucial step in improving deck quality. Later in a run, when your gold supply is stable, the "Draw 1 card" option lets you play it for free to see more of your powerful cards. It thins your deck and accelerates your strategy at no energy cost. It's pure, flexible value.
Arcane Bolt: The Mage's Bread and Butter
- Cost: 1 Energy
- Effect: Deal 8 damage. If you have at least 2 Mana, deal 12 damage instead.
While this is a Mage-focused card, it's worth highlighting as it's the key to making the Mage viable early. The Apprentice Mage's starting deck lacks punch, but a single Arcane Bolt provides the damage he desperately needs. With his starting Mana Crystal and a Meditate card, it's easy to trigger the empowered 12-damage version, which is enough to cripple any non-elite enemy on the first floor. If you're playing Mage, this is your number one priority to find.
How to Evaluate Any New Card You Find
After each combat, you'll be offered a choice of three cards to add to your deck. It can be tempting to just pick the one with the biggest numbers. Use this simple framework to make smarter choices.
Once Upon A Card in-game screenshot
The Cost-to-Impact Ratio
Always judge a card by what it does for its energy cost. A 2-energy card that deals 10 damage is strictly worse than your starting Strike (1 energy for 6 damage). A 1-energy card that deals 8 or 9 damage, however, is a significant upgrade. The same goes for block cards. Is this card giving you more than 6 block for 1 energy? If not, it's probably not worth adding.
Does it Replace a Weaker Card?
The goal of deckbuilding isn't just to add powerful cards, but to increase the average power of the cards in your deck. Ask yourself: "When I draw this card, am I happier to see it than a basic Strike or Defend?" If the answer is a resounding yes, it's a good candidate. Cards like Swift Strike and Parry are easy yeses. A card like Heavy Slam (2 Energy, 12 damage) is more debatable early on, as it can be awkward to play.
Does it Synergize with Your Hero?
Consider your hero's unique strengths. The Knight loves cards that provide extra value alongside blocking, like Shield Bash (Gain 5 Block, deal damage equal to your Block). The Ranger benefits from cards that apply debuffs or draw more cards to find her key arrows. The Mage needs Mana generation or cards that benefit from having Mana, like Arcane Bolt.
The Beginner's Traps: Cards to Actively Avoid
Just as important as knowing what to take is knowing what to pass up. Certain cards look appealing on the surface but are actually detrimental to your deck in the early stages of the game. They are often too slow, too expensive, or too situational.
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Holy Smite (3 Energy, 30 damage): This is the classic beginner's trap. The massive damage number is tempting, but a cost of 3 energy means this is the only card you can play on your turn. You'll be left completely defenseless. In the time it takes to play this once, you could have played three Swift Strikes for similar damage while also playing defensive cards.
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Masterwork Armor (2 Energy, 15 Block): While 15 block is a lot, spending your entire turn on defense is a losing strategy. Fights in Once Upon a Card are a race. The faster you can defeat the enemy, the less damage you'll take overall. This card is too passive and prevents you from applying pressure.
Once Upon A Card in-game screenshot
- Risky Bet (0 Energy, Discard 2 cards, Draw 3 cards): Card draw is good, but the cost of discarding two cards is far too steep in the early game. Your starting hand is small, and you can't afford to throw away your precious few Block or Attack cards on the chance of drawing something better. This can easily leave you with an unplayable hand.
Your First Killer Combo: A Two-Card Engine
Synergy is the heart of this game. You don't need a complex, five-card combo to win. A simple two-card interaction is often enough to dominate the first act.
One of the most effective and easy-to-assemble combos is Gouge + Swift Strike.
- Gouge (1 Energy): Deals 4 damage and applies 2 Vulnerable.
- Swift Strike (1 Energy): Deals 7 damage, but because the target is Vulnerable, it deals 10 damage instead. It also triggers its secondary effect, letting you draw a card.
For just 2 energy, this combo deals a total of 14 damage and replaces one of the cards used to do it. It's a simple, powerful engine that demonstrates the core principle of the game: make your cards work together to become more than the sum of their parts. Look for simple interactions like this to build a deck that flows instead of a pile of disconnected "good" cards.
Once Upon A Card in-game screenshot
Frequently Asked Questions
What's the best starting hero in Once Upon a Card?
For a brand new player, the Valiant Knight is the best starting hero. His higher starting health and straightforward, defense-oriented deck provide a much larger margin for error, allowing you to learn basic mechanics and enemy attack patterns without being punished as severely.
How do you get more cards?
You can add cards to your deck in three primary ways: as a reward after defeating enemies, by purchasing them from the Merchant who appears periodically on the map, or through specific random events (like the "Tome of Knowledge" event).
Should you focus on removing cards or adding new ones first?
Early on, removing cards is often more powerful than adding them. Your starting deck is bloated with ten basic Strike and Defend cards. Removing even one of these slightly increases the chance you'll draw your best cards, like Swift Strike or Parry. Prioritize using your first 50-75 gold at a Merchant to remove a basic Strike.
The Final Take
Building a strong starting deck in Once Upon a Card isn't about finding a single overpowered card; it's about creating a lean, efficient machine. Prioritize cheap, flexible cards like Swift Strike and Parry that provide both offensive and defensive value. Use Scrounge to improve your deck quality and your gold count. Avoid expensive, slow cards that seem powerful but leave you vulnerable. If you focus on this core philosophy, you'll find yourself consistently conquering the first act and setting yourself up for a winning run.