Most Enchanted Blades have three named techniques. Enten, Cloud Gouger, Kumeyuri, and Tobimune keep that grammar, then grow extensions. Magatsumi refuses the three-count: five insects plus Malediction. Two wartime swords still have no printed names. This page is the rule the catalog already states.
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Catalog · 三
The three-count三技
Goldfish, clouds, feathers. Then a sword that will not stop at three.