Lunar Eclipse

Lunar Eclipse (月食 Gesshoku) is an archetype of WATER monster, with many of them being Battle Gem monsters, that debuted in NovaTsukimori's product, Starter Deck Nova 3: Semi-Submerged City of the Lunar Eclipse. They are based off Shinto mythology. The strategy of this deck is to create a field with the boss monsters in either the Main Deck or the Extra Deck, and overwhelming your opponent with the use of the Battle Gem effects of those monsters, as they trigger if they battle with a monster whose rarity is often Super Rare or Secret Rare, which, in competitive decks, is common to find in your opponent's field.