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Card Guide

Demon Form

Cost: 3RarePowerIronclad

Card Effect

At the start of your turn, gain 2 Strength.

Upgrade

strengthpower: +1

When to Pick Demon Form

Demon Form is a 3-cost power card for the Ironclad. Powers offer lasting value across the entire fight. Pick this when your deck needs scaling.

When to Skip

At 3-cost, this is on the higher end of the cost curve. Without reliable energy generation, it may sit dead in your hand. Powers require a setup turn. If your deck lacks defense or needs to act immediately, skip until you have the energy to spare. This card provides no direct damage, block, or draw. It is a situational pick — prioritize basic needs first.

Upgrade Value

Medium upgrade priority. Strength +1 — a modest but useful improvement.

Synergies

No automatic synergies detected. Try pairing with same-character and same-keyword cards.

Is Demon Form worth taking?

B-Tier · Slow strength scaling

Demon Form adds 2 Strength every turn, which is enormous if the fight lasts. The problem is the 3-energy setup turn: if you cannot survive it, the card never gets to pay you back.

Numbers and upgrade

StatBaseUpgraded
Cost33

Upgrade changes: Strength +1

How to play Demon Form

  • Play it early enough that the Strength has time to compound, but only after you have block or a safe turn. The best Demon Form turn is a turn you were not going to attack anyway.
  • Have multi-hit attacks ready. Two Strength is worth much more on a card that hits four times than on a single big hit.
  • Upgrade it when the deck is already stable. Three Strength per turn is a real jump, but survival still comes first.

Common mistakes

  • Playing it on a turn where you needed block. The 3-energy investment can cost you the fight before the Strength matters.
  • Taking it in a deck with no multi-hit attacks. Demon Form is a multiplier; it needs good attacks to multiply.

Cards that work with Demon Form

Demon Form belongs in decks that can afford a slow turn and then attack many times. Cheap block and draw cover the setup, and multi-hit attacks turn the Strength into damage.

Where to get Demon Form

Demon Form is in the Ironclad rare pool. It can appear in card rewards after combat, in shops, and in events that generate cards. Elites and bosses do not guarantee it, but they usually improve your odds of seeing higher-rarity cards.

Builds that use it:Ironclad Strength Tempo

Demon Form FAQ

Is Demon Form good in Slay the Spire 2?

B-Tier · Slow strength scaling. Demon Form adds 2 Strength every turn, which is enormous if the fight lasts. The problem is the 3-energy setup turn: if you cannot survive it, the card never gets to pay you back.

What does Demon Form do?

At the start of your turn, gain 2 Strength. Its base cost is 3, it is a Power, and it sits in the Rare rarity.

Should I upgrade Demon Form?

Medium upgrade priority. Strength +1 — a modest but useful improvement. Upgrade changes: Strength +1。

How do I get Demon Form?

Demon Form is in the Ironclad rare pool. It can appear in card rewards after combat, in shops, and in events that generate cards. Elites and bosses do not guarantee it, but they usually improve your odds of seeing higher-rarity cards.

Which cards work well with Demon Form?

Demon Form belongs in decks that can afford a slow turn and then attack many times. Cheap block and draw cover the setup, and multi-hit attacks turn the Strength into damage. Cards to look for: Inflame, Fiend Fire, Feed, Shrug It Off。

What are common mistakes with Demon Form?

Playing it on a turn where you needed block. The 3-energy investment can cost you the fight before the Strength matters. Taking it in a deck with no multi-hit attacks. Demon Form is a multiplier; it needs good attacks to multiply.