Miranda Keith: This would be a sideboard card for grindy matchups, but other options are better, especially when we consider that in the current meta if Knight is leaving the battlefield thats frequently because she got plowed by Swords to Plowshares
Oh, and she's a No Mercy on a stick
ETBs look clean lined up in rows, and promos often become long-term favourites
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Red Dragon Archfiends Chain would fit best in a Red Dragon Archfiend / Resonatorbased Synchro deck that naturally runs multiple Tuners and keeps extra monsters in hand, since it requires revealing Tuners to maximize its negation effect and revealing Red Dragon Archfiend in the Extra Deck to activate it immediately