You need a lot of self-mill to fuel this, and want to make sure you have a bunch of fetch lands and other ways to fuel the pseudo-escape cost, but this amount of power is worth building around
And look, yet another card that really enjoys life play and counters
Thankfully, other printings make it clear that its a Legendary Enchantment that exiles opponents creatures and brings them back under your control, with additional counters on them
Acronyms like WSG, PH, RL, and similarly ambiguously-named websites, help keep this market relatively secretive
Ancestral Recall is the classic example in Vintage, forcing players to have an answer on turn one or risk falling impossibly behind