Although its no longer in the spotlight competitively, the card maintains a strong value due to its rarity and chilling artwork
Meanwhile, Atsushi, the Blazing Sky exiles two cards for playing until the end of your next turn
Six mana and losing a land is a big commitment, but the effect is strong
Enablers: WU is an A+B archetype (technically an A+B+C, since you want artifacts, enchantments, and things that want both), so ideally you can find cheap artifacts and enchantments to get your deck going
When a card with an alternate win condition hits the battlefield, it has a tendency to warp gameplay around itself
You cannot cast an adventure spell that's more expensive than the discover number, even if the main part of the adventure spell is less