A one-quarter body for three mana is incredibly understated
Neither choosing the number nor putting the counters on the Saga use the stack, and neither can be responded to.
When Rampant Rejuvenator dies, search your library for up to X basic land cards, where X is Rampant Rejuvenator's power, put them onto the battlefield, then shuffle
Grimoire Reddit translations show us that the Grimoire drop includes the following cards: Heroic Intervention always hovers over $10 no matter how many reprints it gets, and Commander powerhouse Cyclonic Rift pushes around $30-40 depending on the copy, so safe to say this drop is worth the money, assuming it's sold at a typical Secret Lair price point
Unlike a certain commander who gives opponents card advantage when trying to hurt them, Sheoldred, The Apocalypse only focuses on making drawing cards continuously damaging for them and great for you the added deathtouch makes your enemies think twice about blocking damage, keeping the game plan simple enough that the card will always be in high demand
