Version

Rattle

NecrobinderAttackUncommon
Osty deals 7 damage.
Hits an additional time for each other time he has attacked this turn.

Osty hits for 7 (9 upgraded), once plus one more time for every separate Osty attack he has already made this turn. The count is per attack card, not per hit: Poke, Fetch and Right Hand Hand before it each add a hit. The damage comes from Osty, so Calcify adds to every hit and your Strength adds to none. If Osty is missing the card is wasted.

Character
Necrobinder
Type
Attack
Rarity
Uncommon
Cost
1 Energy
Target
One enemy

When to take Rattle

The payoff for an Osty attack chain: two 0-cost Osty attacks before it make it 21 damage for 1 Energy, more with Calcify. Play it last.

Cards that synergize with Rattle

Poke
Attack
0
Osty deals 6 damage.
Poke and Fetch are free attacks that add hits.Osty deals 6 damage.
Fetch
Attack
0
Osty deals 3 damage.
If this is the first time this card has been played this turn, draw 1 card.
Poke and Fetch are free attacks that add hits.Osty deals 3 damage.
If this is the first time this card has been played this turn, draw 1 card.
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 after 2 cost cards for another count.Osty deals 4 damage.
Whenever you play a card that costs or more, return this to your Hand from the Discard Pile.
Calcify
Power
1
Osty's attacks deal 4 additional damage.
Calcify adds 4 to each of Rattle's hits.Osty's attacks deal 4 additional damage.
Squeeze
Attack
3
Osty deals 25 damage.
Deals 5 additional damage for ALL your other Osty Attacks.
Squeeze rewards the same collection of Osty attacks.Osty deals 25 damage.
Deals 5 additional damage for ALL your other Osty Attacks.
Reanimate
Skill
3
Summon 20.
Exhaust.
Reanimate Summons Osty, whom Rattle counts onSummon 20.
Exhaust.
Afterlife
Skill
1
Summon 6.
Exhaust.
Afterlife Summons Osty, whom Rattle counts onSummon 6.
Exhaust.
Bodyguard
Skill
1
Summon 5.
Bodyguard Summons Osty, whom Rattle counts onSummon 5.
Legion of Bone
Skill
2
ALL players Summon 6.
Exhaust.
Legion of Bone Summons Osty, whom Rattle 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 Rattle 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 Rattle counts onSummon 4.
Gain 7 Block.
Cleanse
Skill
1
Summon 3.
Exhaust 1 card from your Draw Pile.
Cleanse Summons Osty, whom Rattle 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 Rattle 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 Rattle 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 Rattle counts onRetain.
Summon 3.
Osty heals 5 HP.
Invoke
Skill
1
Next turn, Summon 2 and gain .
Invoke Summons Osty, whom Rattle counts onNext turn, Summon 2 and gain .
Devour Life
Power
1
Whenever you play a Soul, Summon 1.
Devour Life Summons Osty, whom Rattle counts onWhenever you play a Soul, Summon 1.

Relics that synergize with Rattle

Bone Flute
Bone Flute gives 2 Block every time Osty attacks.Whenever Osty attacks, gain 2 Block.
Phylactery Unbound
Phylactery Unbound Summons Osty, whom Rattle counts onAt the start of each combat, Summon 5. At the start of your turn, Summon 2.
Bound Phylactery
Bound Phylactery Summons Osty, whom Rattle counts onAt the start of your turn, Summon 1.
✦
Bone Shards
Attack
1
If Osty is alive, he deals 9 damage to ALL enemies and you gain 9 Block.
Osty dies.
Sic 'Em
Attack
1
Osty deals 5 damage.
Whenever Osty hits this enemy this turn, Summon 3.
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.
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.
Snap
Attack
1
Osty deals 7 damage.
Add Retain to a card in your Hand.
Unleash
Attack
1
Osty deals 6 damage.
Deals additional damage equal to Osty's current HP.

Changes by version

  1. 4 Dec 2025InterfaceThe NecrobinderFlattenPokeNeowInternal playtest
    Rattle card now appears in the front of Necrobinder's Rattle/Flatten/Poke Neow card bundle
  2. 6 Nov 2025RarityCommonUncommonInternal playtest
    Rarity changed from Common to Uncommon
    ChangeThe NecrobinderFlattenNeowAfterlifeInternal playtest
    Changed Necrobinder's Flatten Neow Bundle: Afterlife card replaced with to Rattle
  3. 16 Oct 2025Damage5(7)7(9)Internal playtest
    Damage increased from 5 to 7 (upgraded 7 to 9)
All 12 patch notes9 older
  1. 31 Jul 2025Bug fixInternal playtest
    Fixed typo in Rattle card
  2. 24 Jul 2025ReworkInternal playtest
    Reworked the card
  3. 17 Jul 2025Bug fixOstyInternal playtest
    Rattle card now properly glows red if Osty is dead
  4. 26 Jun 2025ReworkInternal playtest
    Reworked cards
  5. 27 Feb 2025ArtInternal playtest
    Added portrait art for some Necrobinder cards
  6. 14 Nov 2024ReworkInternal playtest
    Reworked Rattle card
  7. 1 Nov 2024ReworkInternal playtest
    Reworked the card
  8. 17 May 2024ChangeInternal playtest
    Rattle hits decreased from 3(4) to 2(3)
  9. 4 May 2024AddedInternal playtest
    Added Rattle card

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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