Null

DefectAttackUncommon
Deal 10 damage.
Apply 2 Weak.
Channel 1 Dark.

Two Energy deals 10 damage (13 upgraded), applies 2 Weak (3 upgraded) and then Channels a Dark orb, in that order. The Dark orb stores damage that grows every turn and, when Evoked, hits the enemy with the least HP. Weak cuts the target's Attack damage by 25 percent for its duration.

Character
Defect
Type
Attack
Rarity
Uncommon
Cost
2 Energy
Target
One enemy
Unlock
TrickedBeat Act 1 with the Defect

When to take Null

A solid Act 1 pick for the Defect, giving damage now, a defensive debuff and an orb for later. Take it over a second Strike-level Attack, and upgrade when you can.

Cards that synergize with Null

Darkness
Skill
1
Channel 1 Dark.
Trigger the passive ability of all Dark Orbs.
Darkness and Loop grow the Dark orb faster.Channel 1 Dark.
Trigger the passive ability of all Dark Orbs.
Loop
Power
1
At the start of your turn, trigger the passive ability of your rightmost Orb.
Darkness and Loop grow the Dark orb faster.At the start of your turn, trigger the passive ability of your rightmost Orb.
Dualcast
Skill
1
Evoke your rightmost Orb twice.
Dualcast and Quadcast cash it in.Evoke your rightmost Orb twice.
Quadcast
Skill
1
Evoke your rightmost Orb 4 times.
Dualcast and Quadcast cash it in.Evoke your rightmost Orb 4 times.
Consuming Shadow
Power
2
Channel 2 Dark.
At the end of your turn, Evoke your leftmost Orb.
Consuming Shadow evokes your leftmost orb each turn so the stored damage keeps coming.Channel 2 Dark.
At the end of your turn, Evoke your leftmost Orb.
Barrage
Attack
1
Deal 5 damage for each Channeled Orb.
Barrage adds 5 for every orb, the new Dark included.Deal 5 damage for each Channeled Orb.
Thunder
Power
1
Whenever you Evoke Lightning, deal 6 damage to each enemy hit.
Thunder works with the Orbs Null ChannelsWhenever you Evoke Lightning, deal 6 damage to each enemy hit.
Hailstorm
Power
1
At the end of your turn, if you have Frost, deal 6 damage to ALL enemies.
Hailstorm works with the Orbs Null ChannelsAt the end of your turn, if you have Frost, deal 6 damage to ALL enemies.
Shatter
Attack
1
Deal 7 damage to ALL enemies.
Evoke all of your Orbs twice.
Shatter works with the Orbs Null ChannelsDeal 7 damage to ALL enemies.
Evoke all of your Orbs twice.
Tesla Coil
Attack
0
Deal 3 damage.
Trigger all Lightning against the enemy.
Tesla Coil works with the Orbs Null ChannelsDeal 3 damage.
Trigger all Lightning against the enemy.
Biased Cognition
Power
1
Gain 4 Focus.
At the start of your turn, lose 1 Focus.
Biased Cognition works with the Orbs Null ChannelsGain 4 Focus.
At the start of your turn, lose 1 Focus.
Multi-Cast
Skill
X
Evoke your rightmost Orb X times.
Multi-Cast works with the Orbs Null ChannelsEvoke your rightmost Orb X times.
Capacitor
Power
1
Gain 2 Orb Slots.
Capacitor works with the Orbs Null ChannelsGain 2 Orb Slots.
Coolant
Power
1
At the start of your turn, gain 2 Block for each unique Orb you have.
Coolant works with the Orbs Null ChannelsAt the start of your turn, gain 2 Block for each unique Orb you have.
Hotfix
Skill
0
Gain 2 Focus this turn.
Exhaust.
Hotfix works with the Orbs Null ChannelsGain 2 Focus this turn.
Exhaust.
Synchronize
Skill
1
Gain 2 Focus this turn for each unique Orb you have.
Exhaust.
Synchronize works with the Orbs Null ChannelsGain 2 Focus this turn for each unique Orb you have.
Exhaust.
Compile Driver
Attack
1
Deal 7 damage.
Draw 1 card for each unique Orb you have.
Compile Driver works with the Orbs Null ChannelsDeal 7 damage.
Draw 1 card for each unique Orb you have.
Defragment
Power
1
Gain 1 Focus.
Defragment works with the Orbs Null ChannelsGain 1 Focus.
Focused Strike
Attack
1
Deal 9 damage.
Gain 1 Focus this turn.
Focused Strike works with the Orbs Null ChannelsDeal 9 damage.
Gain 1 Focus this turn.
Modded
Skill
0
Gain 1 Orb Slot.
Draw 1 card. Increase this card's cost by 1.
Modded works with the Orbs Null ChannelsGain 1 Orb Slot.
Draw 1 card. Increase this card's cost by 1.
Hibernate
Skill
2
This turn, your Frost grants ALL allies Block.
Channel 2 Frost.
Hibernate works with the Orbs Null ChannelsThis turn, your Frost grants ALL allies Block.
Channel 2 Frost.

Relics that synergize with Null

Emotion Chip
Emotion Chip works with the Orbs Null ChannelsIf you lost HP during the previous turn, trigger the passive ability of all Orbs at the start of your turn.
Metronome
Metronome works with the Orbs Null ChannelsThe first time you Channel 7 Orbs each combat, deal 30 damage to ALL enemies.
Runic Capacitor
Runic Capacitor works with the Orbs Null ChannelsStart each combat with 3 additional Orb Slots.
Data Disk
Data Disk works with the Orbs Null ChannelsStart each combat with 1 Focus.
Infused Core
Infused Core works with the Orbs Null ChannelsAt the start of each combat, Channel 3 Lightning. Lightning deals 1 additional damage.
Intimidating Helmet
Intimidating Helmet triggers on cards that cost 2 or more, and Null is oneWhenever you play a card that costs or more, gain 4 Block.
✦
Shadow Shield
Skill
2
Gain 11 Block.
Channel 1 Dark.
Consuming Shadow
Power
2
Channel 2 Dark.
At the end of your turn, Evoke your leftmost Orb.
Darkness
Skill
1
Channel 1 Dark.
Trigger the passive ability of all Dark Orbs.
Rainbow
Skill
2
Channel 1 Lightning.
Channel 1 Frost.
Channel 1 Dark.
Exhaust.
Refract
Attack
3
Deal 9 damage twice.
Channel 2 Glass.
Ball Lightning
Attack
1
Deal 7 damage.
Channel 1 Lightning.
Cold Snap
Attack
1
Deal 6 damage.
Channel 1 Frost.
Glacier
Skill
2
Gain 6 Block.
Channel 2 Frost.

Changes by version

  1. 13 Aug 2026Weak application2(3)1(2)Playtest
    Weak application decreased from 2 to 1 (upgraded 3 to 2)
  2. 8 Jan 2026TextThe DefectInternal playtest
    Defect's Black Beam card renamed to Null

Internal playtest notes are from before the Early Access release. Names and numbers in them can differ from the game today.

Purchase today
If you haven't bought Slay The Spire 2 yet, it's time. Support the devs, they made an amazing game.Get it on Steam