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If a hero monster is summoned to the zone he points to, you can put a Polymerization, Fusion, or Change quick-play spell from your graveyard into the backrow

You can discard 1 card

Culmination of the Monarchs Continuous Trap Card Once per Chain, if your opponent Special Summons a monster(s) and you control a Tribute Summoned monster: You can banish 1 "Monarch" Spell/Trap from your GY, then activate 1 of these effects (but you can only use each effect of "Culmination of the Monarchs" once per turn)

Both of its effects involve milling with another effect attached, which greatly accelerates the archetype's win condition

6 MERMAIL ABYSSGUNDE Abyssgunde is an underrated MVP of Mermail decks everywhere

Notes[edit] "Metaltron XII" features a visually-related counterpart in the form of "Zefra Metaltron"