It shuts down lifegain, which is a very black-themed thing to do, and gives you a great draw-engine that isn't limited by tapping
As such, it's best to use these with types of cards that create creature tokens
With eight possible evolutions, it would only be fair for players to have at least a few Eevee cards to evolve from
I feel like this is one of the most well-realized precon decks ever out of the box, so you dont necessarily need to change 30% of the cards straight away even if I told you to jam a few games, talk with your group about the power level you want, and then decide where you want to land on the scale between AFR Set Constructed Venture Tribal and Legacy Reanimator Combo
Equipped with price ranges for countless cards, you can seamlessly estimate the worth of your collection by evaluating these determinants
But fun varies greatly from player to player