What Does Aggression Do in Slay the Spire 2?
Aggression gives Ironclad decks access to a power effect that can matter far beyond the turn it is played. Base Aggression reads: At the start of your turn, put a random Attack from your Discard Pile into your Hand and Upgrade it.
Because it is a rare card that costs 1, Aggression should be judged by how efficiently it fits into your act path and whether it improves your plan against elites and bosses.
Aggression Upgrade: Is It Worth It?
At the start of your turn, put a random Attack from your Discard Pile into your Hand and Upgrade it.
Innate. At the start of your turn, put a random Attack from your Discard Pile into your Hand and Upgrade it.
The upgraded version of Aggression reads: Innate. At the start of your turn, put a random Attack from your Discard Pile into your Hand and Upgrade it. If that upgrade makes the card meaningfully more efficient or more reliable in long fights, it is usually worth considering once your deck has its core survival tools.
Best Synergies for Aggression in STS2
Ironclad Core Plan
Aggression is strongest when it supports the game plan Ironclad already wants to execute. The better the deck is at presenting the right combat pattern, the more consistently this card performs.
Curve And Tempo
Cards with similar cost and timing pressures determine whether Aggression feels smooth or clunky. Make sure the rest of your hand can cover the turn where you commit 1 energy to it.
Upgrade Leverage
If the upgraded text dramatically improves output, survivability, or flexibility, Aggression becomes a stronger smith target than generic rate upgrades.
How to Use Aggression Effectively
Aggression should be played with intent. Think about the matchup, the shape of the fight, and whether you are using it to stabilize, to scale, or to close the door on a combat before it snowballs.
- Use Aggression in fights where its text matters for more than a single turn cycle.
- Compare its value to other Ironclad lines before committing your energy to it.
- Upgrade Aggression when the improved version changes your confidence in elite and boss fights.
Aggression Tier Rating & Deckbuilding Tips
A Tier Build-Around
Aggression earns this rating because its ceiling depends on deck context, not just raw text. In the right Ironclad shell it can be a real plan piece, while in a mismatched list it is often merely acceptable.
Frequently Asked Questions
Is Aggression a good card in Slay the Spire 2?
Aggression is worth considering when your Ironclad deck wants reliable power value. Aggression is a Rare Power card (Cost 1) in Slay the Spire 2 (STS2). At the start of your turn, put a random Attack from your Discard Pile into your Hand and Upgrade it.
What changes when you upgrade Aggression?
The upgraded version of Aggression currently reads: Innate. At the start of your turn, put a random Attack from your Discard Pile into your Hand and Upgrade it. This usually makes the card more efficient on the turns where it matters most.
When should you pick Aggression?
Pick Aggression when your run already supports its role and your curve can absorb a cost of 1. In practice, it performs best when the rest of the deck helps you reach the right timing window.
Which decks use Aggression best?
Aggression performs best in Ironclad lists that can convert its text into repeated fight-winning value instead of treating it as a one-card solution.