Osty Build
tier: SUse Summon to keep Osty healthy, then turn Osty's HP and attacks into both defense and damage through HP-scaling attacks and Necro Mastery.
Points
- Pull Aggro is a clean setup card because it gives Summon 4 and 7 Block in one play, helping you establish Osty without losing tempo.
- Once Necro Mastery is in play, every point of HP Osty loses is dealt to all enemies, turning Osty's durability into a reliable damage source.
- Cards like Unleash and Protector get better as Summon grows, so make sure the deck has enough ways to keep Osty's HP high.
- If you add many Osty attacks, build around repeated Osty actions rather than splitting too hard into unrelated systems.
- Avoid mixing this build with sacrifice-focused strategies like Bone Shards; the two approaches conflict and undermine each other.
Cards
Main Mechanic Cards that provide Summon, keep Osty alive, and convert Osty's HP into the build's main value.
Synergy Osty attack cards and scaling tools that become better once Summon and HP support are in place.
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Osty deals 11 damage and applies 2 Vulnerable to ALL enemies.
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Osty deals 7 damage.
Hits an additional time for each other time he has attacked this turn. -
Osty deals 3 damage.
If this is the first time this card has been played this turn, draw 1 card. -
Osty deals 12 damage.
This card costs 0 ● if Osty has attacked this turn. -
Osty deals 5 damage.
Whenever Osty hits this enemy this turn, Summon 2. -
Osty's attacks deal 4 additional damage.
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Osty deals 25 damage.
Deals 5 additional damage for ALL your other Osty Attacks. -
Osty deals 10 damage.
Deals additional damage equal to Osty's Max HP.
Support Cards that improve retention, healing, extra Summon, or defensive pacing around Osty turns.
Relics
Bone Flute Whenever Osty attacks, gain 2 Block.
Bag of Preparation At the start of each combat, draw 2 additional cards.
Gambling Chip At the start of each combat, discard any number of cards then draw that many.
Anchor Start each combat with 10 Block.
Captain's Wheel At the start of your 3rd turn, gain 18 Block.