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Koma, Cosmos Serpent - The mana cost on this one is hefty, but theres some serious power here nonetheless

Likewise, it could be that they have a spell/trap set in their spell/trap zone, so you can place a spell/trap in that same column on your side of the field, and now theres 2 cards in that column, letting you special summon a Mekk-Knight to it On top of being able to get out strong monsters this way multiple times per turn, they have multiple effects, some of which let you move the cards on the field so that you can summon to the same zone (because the columns had 2 or more cards in them) multiple times by letting you move the card you just summoned out of the way and put a new one there

A powerful card will see play across multiple archetypes and bleed into several strategies

Mark Rosewater has acknowledged that a similar template with a different symbol is a possibility for future sets