Defect

Defect Tier List

Defect tier list ranking all cards from S-tier (must-pick) to D-tier (avoid). Based on consistency, impact, and synergy potential.

Provisional tier list — auto-generated

Rankings below are auto-generated from our synergy engine (rarity + synergy tags + archetype fit). A high-level Slay the Spire 2 player is building the expert-curated version now. Cards re-rank automatically as the synergy engine is refined.

Type
Cost
Rarity
S

Tier S(24 cards)

Must-pick cards. Exceptional value and power.

Biased Cognition

Biased Cognition

1E·Power
View Biased Cognition
Bulk Up

Bulk Up

2E·Power
View Bulk Up
Consuming Shadow

Consuming Shadow

2E·Power
View Consuming Shadow
Coolant

Coolant

1E·Power
View Coolant
Defragment

Defragment

1E·Power
View Defragment
Echo Form

Echo Form

3E·Power
View Echo Form
Fight Through

Fight Through

1E·Skill
View Fight Through
Flak Cannon

Flak Cannon

2E·Attack
View Flak Cannon
Fusion

Fusion

2E·Skill
View Fusion
Glacier

Glacier

2E·Skill
View Glacier
Hyperbeam

Hyperbeam

2E·Attack
View Hyperbeam
Ice Lance

Ice Lance

3E·Attack
View Ice Lance
Ignition

Ignition

1E·Skill
View Ignition
Meteor Strike

Meteor Strike

5E·Attack
View Meteor Strike
Modded

Modded

0E·Skill
View Modded
Multi-Cast

Multi-Cast

0E·Skill
View Multi-Cast
Null

Null

2E·Attack
View Null
Overclock

Overclock

0E·Skill
View Overclock
Quadcast

Quadcast

1E·Skill
View Quadcast
Rainbow

Rainbow

2E·Skill
View Rainbow
Refract

Refract

3E·Attack
View Refract
Shadow Shield

Shadow Shield

2E·Skill
View Shadow Shield
Shatter

Shatter

1E·Attack
View Shatter
Voltaic

Voltaic

3E·Skill
View Voltaic
A

Tier A(21 cards)

Great staples. Strong additions to most decks.

Boost Away

Boost Away

0E·Skill
View Boost Away
Boot Sequence

Boot Sequence

0E·Skill
View Boot Sequence
Capacitor

Capacitor

1E·Power
View Capacitor
Chill

Chill

0E·Skill
View Chill
Compile Driver

Compile Driver

1E·Attack
View Compile Driver
Coolheaded

Coolheaded

1E·Skill
View Coolheaded
Creative AI

Creative AI

3E·Power
View Creative AI
Darkness

Darkness

1E·Skill
View Darkness
Genetic Algorithm

Genetic Algorithm

1E·Skill
View Genetic Algorithm
Iteration

Iteration

1E·Power
View Iteration
Lightning Rod

Lightning Rod

1E·Skill
View Lightning Rod
Machine Learning

Machine Learning

1E·Power
View Machine Learning
Reboot

Reboot

0E·Skill
View Reboot
Rocket Punch

Rocket Punch

2E·Attack
View Rocket Punch
Scrape

Scrape

1E·Attack
View Scrape
Storm

Storm

1E·Power
View Storm
Sunder

Sunder

3E·Attack
View Sunder
Synchronize

Synchronize

1E·Skill
View Synchronize
Tempest

Tempest

0E·Skill
View Tempest
Thunder

Thunder

1E·Power
View Thunder
Trash to Treasure

Trash to Treasure

1E·Power
View Trash to Treasure
B

Tier B(18 cards)

Solid middle ground. Viable with the right synergies.

Adaptive Strike

Adaptive Strike

2E·Attack
View Adaptive Strike
All for One

All for One

2E·Attack
View All for One
Ball Lightning

Ball Lightning

1E·Attack
View Ball Lightning
Barrage

Barrage

1E·Attack
View Barrage
Cold Snap

Cold Snap

1E·Attack
View Cold Snap
Compact

Compact

1E·Skill
View Compact
Focused Strike

Focused Strike

1E·Attack
View Focused Strike
FTL

FTL

0E·Attack
View FTL
Glasswork

Glasswork

1E·Skill
View Glasswork
Helix Drill

Helix Drill

0E·Attack
View Helix Drill
Hotfix

Hotfix

0E·Skill
View Hotfix
Scavenge

Scavenge

1E·Skill
View Scavenge
Signal Boost

Signal Boost

1E·Skill
View Signal Boost
Skim

Skim

1E·Skill
View Skim
Smokestack

Smokestack

1E·Power
View Smokestack
Spinner

Spinner

1E·Power
View Spinner
Supercritical

Supercritical

0E·Skill
View Supercritical
TURBO

TURBO

0E·Skill
View TURBO
C

Tier C(20 cards)

Situational. Can work in specific strategies.

Beam Cell

Beam Cell

0E·Attack
View Beam Cell
Buffer

Buffer

2E·Power
View Buffer
Chaos

Chaos

1E·Skill
View Chaos
Charge Battery

Charge Battery

1E·Skill
View Charge Battery
Double Energy

Double Energy

1E·Skill
View Double Energy
Dualcast

Dualcast

1E·Skill
View Dualcast
Energy Surge

Energy Surge

1E·Skill
View Energy Surge
Go for the Eyes

Go for the Eyes

0E·Attack
View Go for the Eyes
Gunk Up

Gunk Up

1E·Attack
View Gunk Up
Hailstorm

Hailstorm

1E·Power
View Hailstorm
Hologram

Hologram

1E·Skill
View Hologram
Leap

Leap

1E·Skill
View Leap
Loop

Loop

1E·Power
View Loop
Subroutine

Subroutine

1E·Power
View Subroutine
Sweeping Beam

Sweeping Beam

1E·Attack
View Sweeping Beam
Synthesis

Synthesis

2E·Attack
View Synthesis
Tesla Coil

Tesla Coil

0E·Attack
View Tesla Coil
Uproar

Uproar

2E·Attack
View Uproar
White Noise

White Noise

1E·Skill
View White Noise
Zap

Zap

1E·Skill
View Zap
D

Tier D(5 cards)

Weak picks. Avoid unless desperately needed.

Claw

Claw

0E·Attack
View Claw
Defend

Defend

1E·Skill
View Defend
Feral

Feral

2E·Power
View Feral
Momentum Strike

Momentum Strike

1E·Attack
View Momentum Strike
Strike

Strike

1E·Attack
View Strike

Note: Tier lists are subjective and based on overall viability and consistency. Card effectiveness varies by run, deck composition, and player skill. These rankings reflect the meta and are updated periodically.

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