Summoning items

Summoning items are items that are used to summon enemies, bosses and events. Most bosses will usually not spawn on their own, therefore requiring the player to create their summoning item in order to progress.

Most boss-summoning items can also be bought from different NPCs after they have been defeated. See Bosses for a list showing which NPC sells which item.

Enemies

Item	Summons	Conditions
Sandstorm's Core	Great Sand Shark	Desert
Super Dummy	Super Dummy	n/a

Bosses

Item	Summons	Conditions
Desert Medallion	Desert Scourge	Desert
Decapodita Sprout	Crabulon	Glowing Mushroom biome
Teratoma	The Hive Mind	Corruption
Bloody Worm Food	The Perforators	Crimson
Overloaded Sludge	The Slime God	n/a
Cryo Key	Cryogen	Snow biome
Charred Idol	Brimstone Elemental	Brimstone Crag
Seafood	Aquatic Scourge	Sulphurous Sea
Eye of Desolation	Calamitas	Night
Portabulb	Plantera	Jungle
Draedon's Remote	Mechanical Bosses	Night
Astral Chunk	Astrum Aureus	Astral Infection Night
Old Power Cell	Golem	Jungle Temple
Abombination	The Plaguebringer Goliath	Jungle
Death Whistle	Ravager	Surface
Eidolon Tablet	Lunatic Cultist	n/a
Titan Heart or Starcore (  @  Astral Beacon)	Astrum Deus	Night
Profaned Shard	Profaned Guardians	Underworld or The Hallow Day
Exotic Pheromones	Dragonfolly	Jungle
Profaned Core	Providence, the Profaned Goddess	Underworld or The Hallow
Rune of Kos	Signus, Envoy of the Devourer Ceaseless Void Storm Weaver	Underworld Dungeon Space
Necroplasmic Beacon	Polterghast	Dungeon
Cosmic Worm	The Devourer of Gods	n/a
Jungle Dragon Egg	Jungle Dragon, Yharon	Jungle
Ashes of Calamity or Ceremonial Urn (  @  Altar of the Accursed)	Supreme Calamitas	n/a

Events

Item	Summons	Conditions
Torrential Tear	Rain (toggle)	n/a
Caustic Tear	Acid Rain (toggle)	n/a
Arid Artifact	Sandstorm (toggle)	Only after the Desert Scourge has been defeated
Blood Relic	Blood Moon	Night When a Blood Moon is not already active
Terminus	Boss Rush	n/a