diabolos deck yugioh Yu-Gi-Oh! - Diabolos, King of The Abyss (FOTB-EN061) - Force of The Breaker - 1st Edition 3000 Defense Diabolos, King of the Abyss

Sejiri Glacier 5/10 Situational in a game state context rather than game stage - the bad kind

Part of a cycle that features the almost-as-broken Gaea's Cradle and somehow the hilariously unbroken Shivan Gorge, Tolarian Academy taps to make a mana for each artifact you control, which led to decks that would dump their entire hand of cheap artifacts, make a ton of mana by tapping and maybe untapping Tolarian Academy, and then use big card-draw spells like Windfall and Stroke of Genius to refill before eventually milling the opponent out with Stroke of Genius, potentially all on Turn 1

The consequences of this breakthrough are hard to overstate

Approximately 24 hours after this review has been posted, I will use a random number generator to select a commenter who has commented with the correct answer.