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.

Enemies[]

Item	Summons	Conditions
Sandstorm's Core	Great Sand Shark	Desert
Cosmic Entangler	Distortion Essence Sphere	n/a
Interplanetary Worm Food	Mechawyrm	n/a
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
Puffy Abomination	Cumulomenace	When the player is at any height where Floating Islands can be found.
Cryo Key	Cryogen	Snow biome
Charred Idol	Brimstone Elemental	Brimstone Crag
Lantern Shard	The Forbidden Lantern	Sunken Sea
Disassembly Signal	Serial Designation N	Night
Fused Eye	Polyphemalus	Night
Eye of Desolation	Calamitas	Night
Portabulb	Plantera	Jungle
Draedon's Remote	Mechanical Bosses	Night
Astral Chunk	Astrageldon Slime	Astral Infection Day
Astralination	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
Calamitous Certificate EX	Unstable Calamity	n/a
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
Celestial Geode	The Starborn Moth	The Hallow or Space
Astral Communicator	Empyreon	Surface
Necroplasmic Beacon	Polterghast	Dungeon
Oddest Mushroom	Profusion, the Viral God	Glowing Mushroom biome
Cosmic Worm	The Devourer of Gods	n/a
Gooz Sayer's Coin ( @ Apocalyptic Slime Statue)	Horseslimes of the Goopocalypse	Night
Jungle Dragon Egg	Jungle Dragon, Yharon	Jungle
Bloody Vein( @ Ancient Console)	The Wall of Bronze	n/a
Crystal Skull	XF-09 Ares	n/a
Jet Rec Radio	XS-01 Artemis and XS-03 Apollo	n/a
Seismometer	XM-05 Thanatos	n/a
Neural Activation Flare	XP-00 Hypnos	n/a
Ashes of Calamity or Ceremonial Urn ( @ Altar of the Accursed)	Supreme Calamitas	n/a
Stellar Locus	XC-39 Oizys	n/a
Draedon Power Pie	Disgusting Creature: Dron	n/a
Genesis	The Entropic God, Noxus	After the Boss Rush has been completed once.
Shady Gazing Skull	XB-10 Losbaf	n/a
Artificial Reactive Matter	Reactive Guardian, Sodis	Finished Aquatic Hypercomputer
Eschaton	Exodygen	After the Boss Rush has been completed once.

Events[]

Item	Summons	Conditions
Torrential Tear	Rain (toggle)	n/a
Caustic Tear	Acid Rain	When an Acid Rain is not already active
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
Martian Distress Beacon	Martian Madness	n/a
Terminus	Boss Rush	n/a

Notes[]

Most boss-summoning items are not consumable, and can be used an unlimited amount of times. This excludes the Titan Heart and Ashes of Calamity.