Just to address a seemingly common (and understandable) misconception in this thread, New Perspectives is not needed to generate a functionally infinite loop on turn 1, and thus even outright banning it wouldn’t be sufficient to stop those loops from occurring consistently before turn 5.
I’ve run 2 infinite cycling decks in ToA for the last 2 cycles and this one, neither of which has dropped a ribbon so far: Kiora on the green node, and Ajani 2 on the white node. I don’t have thorough historical data to compare their average or median results, but I can attempt to compile at least limited info for each going forward, and these are the results for the first 4 games on each node for this cycle:
Kiora - winning turns 3, 6, 3, and 1 respectively; 3.25 turns needed on average to win
Ajani 2 - winning turns 8, 3, and 2, and 6 respectively; 4.75 turns needed on average to win
This isn’t enough data to draw strong conclusions, but crucially, it’s unbiased; the previous examples I’ve posted were cherry-picked to illustrate the peak results, which occur with alarming frequency but nevertheless fail to reflect the average or median. As a very loose estimate, I’d put the average turn needed to go infinite with New Perspectives at around 3-4, and without it at around 4-6. The actual winning turns are often a bit slower due to real-time considerations and/or suboptimal technique (both of which were factors in a few of these games), but the estimate is intended to reflect the theoretical limit of consistency, assuming correct play and a willingness to spend as much time as needed to complete a one-turn winning loop as soon as possible.
Shefet Monitor is one of the key cards these decks have in common, beyond a critical mass of cycling 1 near-blanks, and it’s a core enabler due to the ability to gain mana without passing the turn; adjusting enough engines might be enough to rein in cycling to reasonable levels without changing cycling costs, but every last engine would have to be hit, without exception, not just one or a few. Leaving any of Drake Haven, Faith of the Devoted, Monitor, New Perspectives, Alhammarret’s Archive, Monuments (even these are enough to go infinite currently with another piece or two, and if pressed I’d be happy to provide numerous examples), or Curator intact still gives too much upside for too little mana to a mechanic that’s already extremely powerful even without any enhancements.
This reflects on a core design principle that the devs seemed to have missed the mark on with cycling: recurring “whenever X happens” triggers that produce extra mana or extra cards are game balance minefields, and their frequency and power level have to be kept low enough to allow other decks to interact during the first few turns of the game. Otherwise, we’re not playing a multiplayer game, even asynchronously; we’re playing Solitaire with a different skin instead.