Horizon of the Captivating Skandha

Horizon of the Captivating Skandha is Dagon's domain expansion using innate technique.

Development
It is unknown when Dagon was able to develop his Domain Expansion, but he was able to use it when he was still a Cursed Womb.

Environment
Dagon's Domain Expansion is conjured when Dagon forms a seal on his stomach. This creates a tropical beach that has a forest of palm trees on one side of the shore and a vast ocean on the other side.

Effect
Horizon of the Captivating Skandha has a sure-hit technique that allows the shikigami that Dagon creates to automatically hit their target. This Domain Expansion has been described as a calm Domain.

Usage
Dagon used his Domain Expansion first time within an apartment to relax in the water while Mahito was sitting on the beach. Kenjaku commented that Dagon has quite the calm domain. Later, this Domain has been used frequently for similar purposes.

Later, after becoming a Cursed Spirit he utilized his Domain again for battle purpose against Kento Nanami, Maki Zenin, and Naobito Zenin. He used his Shikigami to attack them. However, Megumi broke into his Domain by expanding his Domain which lead to a battle of Domains and negating Dagon's sure-hit technique.

Trivia

 * On this Domain Expansion's name:
 * The first kanji, tō (蕩), means "melting; charming/captivating". In this case, given its reading of tau, it is presumably derived from tayutau (揺蕩う), which means "to sway to and fro; to drift about", which could be a nod to how Dagon may let himself float in the waters of his Domain.
 * The second kanji, un (蘊), can be translated as "pile; heap; aggregate; abundance". It also means skandha(s), which is the Buddhist concept of five material and mental factors ("aggregates") that contribute to the rise of craving in sentient beings.
 * The last part, heisen (平線), means "horizon" (e.g., suiheisen means the horizon related to the sea). Accordingly, the line where the sea and sky meet are visible in Dagon's Domain.

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