Heavy Core
Block Stack: 64 Since 1.21 (Tricky Trials)
Quick answer: Ominous vaults inside trial chambers: 7.5% chance per vault - the only source in the game.
How to get it
- Ominous vaults inside trial chambers: 7.5% chance per vault - the only source in the game
- Ominous vaults open with ominous trial keys, dropped by ominous trial spawners (spawners you face with the Trial Omen effect active)
- Each ominous vault opens once per player - bring friends with their own keys for more rolls
- Once placed, it mines fast with a pickaxe and always drops itself
Uses
- Craft the mace: heavy core above a breeze rod in the crafting grid
- Epic-rarity trophy block - its purple name makes it a flex item for display rooms
- Redstone curiosity: piston behavior differs between editions (see edition notes)
Renewability
Not renewable in practice: one opening per player per ominous vault, so the world's heavy cores are finite.
Java vs Bedrock
Java: pistons push AND pull heavy cores, and they stick to slime and honey blocks. Bedrock: like glazed terracotta, pistons can push but not pull them, and they do not stick to slime or honey.
Related: Breeze RodTrial Key