Version

Calcify

NecrobinderPowerUncommon
Osty's attacks deal 4 additional damage.

A 1-cost Power: every attack Osty makes deals 4 more damage (6 upgraded) per hit. Osty is treated as the attacker for his cards, so your own Strength never adds to them; Calcify is effectively his Strength. Multi-hit Osty cards get the bonus on every hit, and area cards like Bone Shards get it on every enemy.

Character
Necrobinder
Type
Power
Rarity
Uncommon
Cost
1 Energy
Target
Yourself
Unlock
The GiantKill 15 Elites with the Necrobinder

When to take Calcify

Take it for a Necrobinder deck with several Osty attacks. From Act 1 it turns Poke and Fetch into real hits, but skip it in a Doom deck without Osty attacks.

Cards that synergize with Calcify

Rattle
Attack
1
Osty deals 7 damage.
Hits an additional time for each other time he has attacked this turn.
Rattle hits again for each other Osty attack this turn, each hit boosted.Osty deals 7 damage.
Hits an additional time for each other time he has attacked this turn.
High Five
Attack
2
Osty deals 11 damage
and applies 2 Vulnerable
to ALL enemies.
High Five adds it to every enemy.Osty deals 11 damage
and applies 2 Vulnerable
to ALL enemies.
Fetch
Attack
0
Osty deals 3 damage.
If this is the first time this card has been played this turn, draw 1 card.
Fetch and Poke are free hits that become real damage.Osty deals 3 damage.
If this is the first time this card has been played this turn, draw 1 card.
Poke
Attack
0
Osty deals 6 damage.
Fetch and Poke are free hits that become real damage.Osty deals 6 damage.
Bone Shards
Attack
1
If Osty is alive, he deals 9 damage to ALL enemies and you gain 9 Block.
Osty dies.
Bone Shards hits all enemies with the bonus.If Osty is alive, he deals 9 damage to ALL enemies and you gain 9 Block.
Osty dies.
Right Hand Hand
Attack
0
Osty deals 4 damage.
Whenever you play a card that costs or more, return this to your Hand from the Discard Pile.
Right Hand Hand returns to Hand for repeat use.Osty deals 4 damage.
Whenever you play a card that costs or more, return this to your Hand from the Discard Pile.
Reanimate
Skill
3
Summon 20.
Exhaust.
Reanimate Summons Osty, whom Calcify counts onSummon 20.
Exhaust.
Afterlife
Skill
1
Summon 6.
Exhaust.
Afterlife Summons Osty, whom Calcify counts onSummon 6.
Exhaust.
Bodyguard
Skill
1
Summon 5.
Bodyguard Summons Osty, whom Calcify counts onSummon 5.
Legion of Bone
Skill
2
ALL players Summon 6.
Exhaust.
Legion of Bone Summons Osty, whom Calcify counts onALL players Summon 6.
Exhaust.
Necro Mastery
Power
2
Summon 5.
Whenever Osty loses HP,
ALL enemies lose that much HP as well.
Necro Mastery Summons Osty, whom Calcify counts onSummon 5.
Whenever Osty loses HP,
ALL enemies lose that much HP as well.
Pull Aggro
Skill
2
Summon 4.
Gain 7 Block.
Pull Aggro Summons Osty, whom Calcify counts onSummon 4.
Gain 7 Block.
Cleanse
Skill
1
Summon 3.
Exhaust 1 card from your Draw Pile.
Cleanse Summons Osty, whom Calcify counts onSummon 3.
Exhaust 1 card from your Draw Pile.
Dirge
Skill
X
Summon 3 X times.
Add X Souls into your Draw Pile.
Exhaust.
Dirge Summons Osty, whom Calcify counts onSummon 3 X times.
Add X Souls into your Draw Pile.
Exhaust.
Sic 'Em
Attack
1
Osty deals 5 damage.
Whenever Osty hits this enemy this turn, Summon 3.
Sic 'Em Summons Osty, whom Calcify counts onOsty deals 5 damage.
Whenever Osty hits this enemy this turn, Summon 3.
Spur
Skill
1
Retain.
Summon 3.
Osty heals 5 HP.
Spur Summons Osty, whom Calcify counts onRetain.
Summon 3.
Osty heals 5 HP.
Invoke
Skill
1
Next turn, Summon 2 and gain .
Invoke Summons Osty, whom Calcify counts onNext turn, Summon 2 and gain .
Devour Life
Power
1
Whenever you play a Soul, Summon 1.
Devour Life Summons Osty, whom Calcify counts onWhenever you play a Soul, Summon 1.

Relics that synergize with Calcify

Bone Flute
Bone Flute gives Block on each Osty attack.Whenever Osty attacks, gain 2 Block.
Phylactery Unbound
Phylactery Unbound Summons Osty, whom Calcify counts onAt the start of each combat, Summon 5. At the start of your turn, Summon 2.
Bound Phylactery
Bound Phylactery Summons Osty, whom Calcify counts onAt the start of your turn, Summon 1.
Permafrost
Permafrost triggers on Powers played, and Calcify is oneThe first time you play a Power each combat, gain 7 Block.
Lost Wisp
Lost Wisp triggers on Powers played, and Calcify is oneWhenever you play a Power, deal 8 damage to ALL enemies.
Mummified Hand
Mummified Hand triggers on Powers played, and Calcify is oneWhenever you play a Power, a random card in your Hand is free to play that turn.
Game Piece
Game Piece triggers on Powers played, and Calcify is oneWhenever you play a Power, draw 1 card.
✦
Bone Shards
Attack
1
If Osty is alive, he deals 9 damage to ALL enemies and you gain 9 Block.
Osty dies.
Necro Mastery
Power
2
Summon 5.
Whenever Osty loses HP,
ALL enemies lose that much HP as well.
Rattle
Attack
1
Osty deals 7 damage.
Hits an additional time for each other time he has attacked this turn.
Sic 'Em
Attack
1
Osty deals 5 damage.
Whenever Osty hits this enemy this turn, Summon 3.
Spur
Skill
1
Retain.
Summon 3.
Osty heals 5 HP.
Fetch
Attack
0
Osty deals 3 damage.
If this is the first time this card has been played this turn, draw 1 card.
High Five
Attack
2
Osty deals 11 damage
and applies 2 Vulnerable
to ALL enemies.
Protector
Attack
1
Osty deals 10 damage.
Deals additional damage equal to Osty's Max HP.

Changes by version

  1. 5 Feb 2026Damage5(7)4(6)Internal playtest
    Damage decreased from 5 to 4 (upgraded 7 to 6)
  2. 1 Jan 2026Osty's bonus damage3(4)5(7)Internal playtest
    Osty's bonus damage increased from 3 to 5 (upgraded 4 to 7)
  3. 18 Dec 2025TextInternal playtest
    Empower to Calcify

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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