The Tomb of Annihilation is based on the classic D&D Tomb of Horrors
At its base, Frodo is a one-drop with one power and two toughness
there's been some fairly good success in that regard, but obviously the gap the Emperor left is not going to be filled so easily
Yep, more expensive, not less
2: Create a 1/1 blue Ninja creature token with "This creature can't be blocked." 7: You get an emblem with "Whenever a creature you control deals combat damage to a player, search your library for a blue or black creature card, put it onto the battlefield, then shuffle." Phased out permanents are treated as though they don't exist
Then you draw equal to the toughness of your biggest dork, nasty since most Green dorks tend to have symmetry like Craterhoof Behemoth or Avenger of Zendikar or Indrik Stomphowler