Improvisation Capstone

Free-spell cascade effects usually resolve once and end there: you dig, you cast what you hit, and the impulse is spent. Paradigm rewrites that arithmetic. The exile-until-total-mana-value-four dig is a familiar red engine, closer to a controlled cascade than a wild one, but the keyword converts a one-shot spell into a standing installation. Once the spell has resolved for the first time, it exiles itself and grants a recastable copy from exile as each of your early main phases begins, so the cascade repeats turn over turn without spending another card. The tension the design must manage is variance: because you dig until total mana value reaches four, a single expensive hit ends the run early while a string of cheap spells overflows into a much larger free turn, and the recurring trigger compounds whichever way your library is stacked. The seven-mana cost is the price of admission, but the real evaluation isn't what one resolution buys; it's what a permanent, self-refreshing free-cast engine does to a game that runs long. As a Lesson, it also lives in that fetched-rather-than-drawn design space where the payoff is retrieved on demand, which quietly changes the deckbuilding math of running an effect this open-ended. The structural shift is the point: not a spell you cast once, but a clock you install and leave running.