Aaron was interested in larger, impactful effects that you would play in a competitive deck even if that was the only thing it did
Its not uncommon for an opponent to fold if they fail to answer Mother of Runes immediately, and in matches where this isnt the case, that can mean that the opponent just doesnt care about the creature axis of the game at all, which isnt a better scenario, merely a shifting of the bad feelings
Fastbond lets you spit out absurd amounts of lands, which breaks the mana system at a foundational level
Kethek, Crucible Goliath Its like a Rakdos Neoform or Birthing Pod - but in reverse
These cards depict eerie locations within the world-spanning house of Duskmourn
This thing is pretty strong, and Clone is run in 6,859 decks over at EDHREC.com which should be pretty easy to swap this over for them