Runic Cap is a passive item in Glacier's Laboratory, a mod for The Binding of Isaac.

On pickup +2 Soul Hearts.

Spawns a Rune Shard.

While held Grants Curse of the Unknown! permanently.

Reduces all enemies' maximum health to 1, but their initial health are not affected.

Spawns a Rune Shard every 3 rooms.

Using Rune Shard sets HP to 1 for all enemies around Isaac. For bosses and minibosses, they lose 80 HP instead.

Runic Cap can be found in the following item pools:

The following tags are applied to this item:

• Download Glacier's Laboratory from the Steam Workshop.