Whether this changes and Prismatic Ending gets more relevant in the future the format will show, but if a card has a chance to shine and change how the format is being played, its definitely Prismatic Ending
In Lorcana the deck minimum is 60, there is no maximum
Aetherflux Reservoir gains far more life than Noctis will lose
The relevant part of this card for me is the non-prevention of combat damage
Magic: The Gathering s new Marvel Super Heroes set is here, and as you can probably imagine, its absolutely packed with legendary creatures you can use as a Commander and build a deck around
The final ability on the card, which allows its controller to pay three mana and sacrifice another creature to draw cards equal to the sacrificed creatures toughness, then discard cards equal to its power, will pair perfectly with not only walls, but certain treefolk, turtles, and plants, too creature types that will almost certainly fill out an eventual Felothar deck