You may sacrifice a creature with a converted mana cost of 0, such as a token creature thats not a copy of another permanent, to cast a spell for its emerge cost
The deck I built is considered Upgraded (Bracket 3) due to the large number of nonland tutor cards, but I'm avoiding Game Changers which includes all of the most efficient ways to tutor a creature from your deck to your hand
Set Boosters Didn't Have Balanced Colors Another simple issue, current set boosters don't have a color balance, instead they have themed commons (commons in set boosters would often have a theme)
You can target a nasty planeswalker, making it much better for formats and metagames where they are heavy
The only downside is if you don't have any more creatures to bring back, you need to take a turn off by tapping it to exile 3 more, which does have a chance to miss
Abomination of Llanowar counts both the Elves on your battlefield and the Elf cards in your graveyard to determine its power and toughness