Version

Colossus

IroncladSkillUncommon
Gain 5 Block.
You receive 50% less damage from Vulnerable enemies this turn.

You gain 5 Block (8 upgraded) and a Colossus counter. While it is on you, Attack damage from any enemy that currently has Vulnerable is multiplied by 0.5. The counter is removed when the enemy turn ends, so it covers exactly the attacks coming this turn. Extra copies do not stack the halving. Non-Attack damage, and attacks from enemies without Vulnerable, are unchanged.

Character
Type
Skill
Rarity
Uncommon
Cost
1 Energy
Target
Yourself

When to take Colossus

Only for decks that keep Vulnerable on the enemy most turns, like Bash, Thunderclap or Bag of Marbles at combat start. There it is the best 1-Energy defense the Ironclad has.

Cards that synergize with Colossus

Thunderclap
Attack
1
Deal 4 damage and apply 1 Vulnerable to ALL enemies.
Thunderclap puts Vulnerable on every enemy so the halving applies to all of them.Deal 4 damage and apply 1 Vulnerable to ALL enemies.
Break
Attack
1
Deal 20 damage.
Apply 5 Vulnerable.
Break applies 5 Vulnerable, covering several turns.Deal 20 damage.
Apply 5 Vulnerable.
Tremble
Skill
1
Apply 3 Vulnerable.
Exhaust.
Tremble is a cheap 3 Vulnerable.Apply 3 Vulnerable.
Exhaust.
Vicious
Power
1
Whenever you apply Vulnerable, draw 1 card.
Vicious draws a card each time you apply it, keeping the engine running.Whenever you apply Vulnerable, draw 1 card.
Bash
Attack
2
Deal 8 damage.
Apply 2 Vulnerable.
Bash applies Vulnerable, which Colossus builds onDeal 8 damage.
Apply 2 Vulnerable.
Dominate
Skill
1
Apply 1 Vulnerable.
Gain 1 Strength for each Vulnerable on the enemy.
Exhaust.
Dominate applies Vulnerable, which Colossus builds onApply 1 Vulnerable.
Gain 1 Strength for each Vulnerable on the enemy.
Exhaust.
Taunt
Skill
1
Gain 7 Block.
Apply 1 Vulnerable.
Taunt applies Vulnerable, which Colossus builds onGain 7 Block.
Apply 1 Vulnerable.
Uppercut
Attack
2
Deal 13 damage.
Apply 1 Weak.
Apply 1 Vulnerable.
Uppercut applies Vulnerable, which Colossus builds onDeal 13 damage.
Apply 1 Weak.
Apply 1 Vulnerable.
Shockwave
Skill
2
Apply 3 Weak and Vulnerable to ALL enemies.
Exhaust.
Shockwave applies Vulnerable, which Colossus builds onApply 3 Weak and Vulnerable to ALL enemies.
Exhaust.
Squash
Attack
1
Deal 10 damage.
Apply 2 Vulnerable.
Squash applies Vulnerable, which Colossus builds onDeal 10 damage.
Apply 2 Vulnerable.
Juggernaut
Power
2
Whenever you gain Block, deal 6 damage to a random enemy.
Juggernaut makes Block count for more, and Colossus gains itWhenever you gain Block, deal 6 damage to a random enemy.
Barricade
Power
3
Block is not removed at the start of your turn.
Barricade makes Block count for more, and Colossus gains itBlock is not removed at the start of your turn.
Body Slam
Attack
1
Deal damage equal to your Block.
Body Slam makes Block count for more, and Colossus gains itDeal damage equal to your Block.
Demonic Shield
Skill
0
Lose 1 HP.
Give another player Block equal to your Block.
Exhaust.
Demonic Shield makes Block count for more, and Colossus gains itLose 1 HP.
Give another player Block equal to your Block.
Exhaust.
Unmovable
Power
2
The first time you gain Block from a card each turn, double the amount gained.
Unmovable makes Block count for more, and Colossus gains itThe first time you gain Block from a card each turn, double the amount gained.
Beacon of Hope
Power
1
Whenever you gain Block on your turn, other players gain half that much Block.
Beacon of Hope makes Block count for more, and Colossus gains itWhenever you gain Block on your turn, other players gain half that much Block.
Entrench
Skill
2
Double your Block.
Entrench makes Block count for more, and Colossus gains itDouble your Block.
Prolong
Skill
0
Next turn, gain Block equal to your current Block.
Exhaust.
Prolong makes Block count for more, and Colossus gains itNext turn, gain Block equal to your current Block.
Exhaust.

Relics that synergize with Colossus

Bag of Marbles
Bag of Marbles makes turn 1 Colossus work.At the start of each combat, apply 1 Vulnerable to ALL enemies.
Hand Drill
Hand Drill applies Vulnerable, which Colossus builds onWhenever you break an enemy's Block, apply 2 Vulnerable.
Parrying Shield
Parrying Shield makes Block count for more, and Colossus gains itIf you end a turn with at least 10 Block, deal 6 damage to a random enemy.
Sturdy Clamp
Sturdy Clamp makes Block count for more, and Colossus gains itUp to 10 Block persists across turns.
Pael's Legion
Pael's Legion makes Block count for more, and Colossus gains itDoubles Block gained from a card, then goes to sleep for 2 turns.
Vambrace
Vambrace makes Block count for more, and Colossus gains itThe first time you gain Block from a card each combat, double the amount gained.

Changes by version

  1. 2 Jul 2026Block5(8)4(7)Playtest
    Block gain decreased from 5 to 4 (upgraded 8 to 7)
  2. 9 Apr 2026RarityRareUncommonBeta branch
    Rarity changed from Rare to Uncommon
  3. Fixed an issue with Colossus card's hovertips when playing in German
All 8 patch notes5 older
  1. 11 Sep 2025ChangeThe IroncladCrueltyInternal playtest
    Ironclad Epoch 2 now unlocks Cruelty instead of Colossus
  2. 20 Jun 2025ArtInternal playtest
    Added portrait art
  3. 1 May 2025TextInternal playtest
    Colossus card now specifies that it only reduces damage for the player who played it
  4. 30 Jan 2025Block6(10)5(8)Internal playtest
    Block decreased from 6 to 5 (upgraded 10 to 8)
  5. Added Crimson Mantle, Unmovable, Conflagration, Fight Me, Winged Jump, Pulverize, Colossus, and Veteran cards

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

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