This article focuses on: Why Magic cards become expensive
They don't expire during the cleanup step or if you or Oko leave the game
If I can manage to meet that condition on other players' turns, that's a lot of Treasure tokens
This new mechanic is quite simple at first, as when players play a card that says, "Start your engines," they, literally, start their engines
While the gameplay of face-down cards is always extremely memorable and fun in Limited, their mana-intensive setup and complex rules seemed to belong to a long-past era of Magic design
Alternatively, you can cheat this mana cost through the use of mechanics like proliferate in order to provide additional hatchling counters without actually paying for them