We also have plenty of "size matters" payoffs like drawing silly amounts of cards off Return of the Wildspeaker, ramping out all the lands with Traverse the Outlands, devouring entire armies with Monstrous Onslaught, and flooding the board with creatures with Scepter of Celebration
Faerun fancies: Adventures in the Forgotten Realms spoilers On that power question, my money is on 'no', incidentally - but the card is sure to see a lot of play nonetheless
(Note that Borderland Ranger and other spells which put Lands in our hand have value - they can make certain we hit our drops, which is a valuable thing
for the rest of the rare, but not valuable cards, it'll just make it even more tedious
Cellar Door is here for that three mana tap
What are your thoughts on Mystical Archive cards