red white card draw mtg The Magical History of Red's Impulsive The Lord of the Rings:

Punishing an opponent for killing a creature feels very good, and Kairi, The Swirling Sky is powerful enough that opponents will have to deal with it at some point

While we'll talk about some cards that work well with Naban, Dean of Iteration in a minute, it's also important to point out that there's a second level to Naban, Dean of Iteration that isn't present with Panharmonicon

Many people think of the old-school precons like the Kaalia of the Vast and Edgar Markov decks as highly powerful

Either way, Repurposing Bay certainly has a winning formula to, at worst, see some heavy experimentation and, at best, dominate multiple MTG formats.