This Muldrotha will likely end up somewhere in the middle, depending on how rare its foil versions are
Eumidian Wastewaker Whenever Eumidian Wastewaker attacks, it makes both you and your opponent discard or sacrifice, often turning extra lands into card draw
They just want to slightly smooth out their earlygame draws, trying to curve out on turns 2, 3, and 4, while helping make up for their lack of one-drops
Metamorph takes this slot as the most flexible clone even outside artifact decks, because it can come down for three mana and two life, copy both yours or opponents creatures and can also copy artifacts
Only a specific handful of cards below rare can generate multiple TRTY triggers without recursion, but from the sheer quantity of cards that interact with this mechanic, this is more of a speed-bump on your road to full Ring power than a true barrier
This decks commander, Vrondiss, Rage of Ancients, lets you create large tokens pretty easily