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Machine Spirit: Ancient Weapon (精械:古代兵器 Sei Kai: Kodai Heiki) is a SIGNI class associated with black SIGNI.

Ancient Weapons are based off of a variety of things, all ancient and sometimes mechanical in nature. Among their influences are mythical or out-of-place artifacts, ancient architecture, instruments of torture, beings from the Cthulhu mythos, cryptids, and even other intellectual properties.


Ancient Weapon SIGNI revolve around returning SIGNI from the trash to the field. Many Ancient Weapons have abilities that facilitate or encourage bringing back SIGNI from the trash, like abilities that mill cards from your own deck, costs that require putting your own SIGNI into the trash, and abilities that trigger whenever a SIGNI enters the field from the trash.

List of Ancient WeaponsEdit

Level 1Edit

Level 2Edit

Level 3Edit

Level 4Edit

Level 5Edit


Main article: Category:Ancient Weapon Support
SIGNI Classes
Type White White Red Red Blue Blue Green Green Black Black Colorless Colorless
Image Spirit Angel Valor Wisdom Beautiful Technique Devil
Living Spirit Apparition Dragon Beast Water Beast Earth Beast
Sky Beast
Misfortune Insect
Machine Spirit Labyrinth Riding Machine Electric Machine Cooking Ancient Weapon
Nature Spirit Space Gem
Atom Plant Bacteria
War Spirit Arm Weapon Trick Playground Equipment Poison Fang
Origin Spirit Origin Spirit