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Hello World — Event Power Card in Slay the Spire 2

Updated 17 Oct 2026 Source Slay the Spire 2 card data (spire-codex.com API), 577 cards retrieved 17 October 2026 By
Data status: The facts on this page were checked against the source named above. Game values can still shift with a patch, so re-check anything that looks off.
Hello World card art
Hello World

At the start of your turn, add a random Common card into your Hand.

CharacterEvent
TypePower
RarityEvent
Cost1 Energy
TargetSelf

Card text

At the start of your turn, add a random Common card into your Hand.

This card has no upgraded text in the card data, so it does not change on upgrade or the change is not text.

Other Event cards at 1 Energy

  • Apparition — Gain 1 Intangible.
  • Caltrops — Whenever you are attacked, deal 3 damage back.
  • Distraction — Add a random Skill into your Hand. It's free to play this turn.
  • Dual Wield — Choose an Attack or Power card. Add a copy of that card into your Hand.
  • Exterminate — Deal 3 damage to ALL enemies 4 times.
  • Mad Science — Deal 12 damage.

Where to go next

All 577 cards — the full table, filterable by character. Efficiency tier list — every measurable card ranked.

Rarity system explains how often this card appears. Enchantments covers the modifiers that can change it.

Frequently asked questions

What does Hello World do in Slay the Spire 2?

At the start of your turn, add a random Common card into your Hand.

How much does Hello World cost?

1 Energy. It is a Event Power card.

More Slay the Spire 2 guides

Sources

Figures and item data on this site are read from the game’s own reference wiki before publishing. Where a value could not be confirmed there, the page says so instead of filling the gap.