The 4 MV of Marsh Flitter is rather rough for a 1/1 creature, but you do get the added benefit of creating two 1/1 Goblins
Not only can you reduce the costs of casting Emrakul based on what card types are in your graveyard, but when cast, you can take control of target opponent during that players next turn
You may cast the creature later from exile.) The ability that defines Cruel Somnophage's power and toughness functions in all zones, not just the battlefield
I put basically no stock in the pump ability, though I guess some prowess-heavy Veyran, Voice of Duality EDH decks or red aggro decks in Constructed might choose that mode on occasion
Players who participate in multiple Prerelease events have a higher chance of finding the matching d20 spindown crystal counter
You still need to legally activate the original ability first, but once its on the stack, any effect that copies abilities can duplicate it and give you the same effect again