Ripples of Undeath is the kind of self-mill Ive been waiting for
Otherwise, general landfall decks with commanders like Omnath, Locus of Creation or Soul of Windgrace would be a decent home for these cards
Galarian Moltres V The 2021 Chilling Reign expansion introduced a revolutionary take on one of the best Pokmon cards of all time
While Compleated Sage is the only card we've seen this mechanic on so far, with the way the story is leading up to a big conflict with the Phyrexians, it likely won't be the last
Not quite a repeatable board wipe, but it does remove a ton of cards from both the battlefield and your opponents hands, leaving them inaccessible in their graveyards until the final chapter on the Saga puts them all onto the battlefield under your control
It can either generate mana, draw cards, or grow Baylen massively with counters