Main Phase 1 During this phase, you may Set or play Monster, Magic, and/or Trap Cards
This only needs to make a single mana a turn to have similar value to a Llanowar Elves, which is a fine floor when you consider the cards ceiling of an extra 3 or 4 mana a turn
Here are the most common approaches, each with distinct advantages
Rapunzel & Flynn is a five-ink card that can be used in your inkwell, and quests for two lore
As such, even in a deck built around the land (with all basic Swamps), it doesn't really do anything until the late game, which means the easiest mono-black shell in Standard (Mono-Black Aggro) can't really take advantage of the card, since it generally wants to win or lose the game before Turn 6
That being said, creature types in Universes Beyond sets are always a bit finicky, so nothing is guaranteed