Mazes End is the classic win if you control 10 Gates
Here's another: It costs five mana, and yet it's still usually a four-of backbone in the Esper Dragons deck
Also, we've played a lot of games with it in R&D
Plains Rarity: Common TYPE: Basic Land SUBTYPE: Plains CMC: 0 Mana cost: USD: $0.27 EUR: 0.39 TIX: 0.04 EDHREC RANK: - ( : Add .) Plains Rarity: Common TYPE: Basic Land SUBTYPE: Plains CMC: 0 Mana cost: USD: $0.49 EUR: 0.31 TIX: 0.04 EDHREC RANK: - ( : Add .) Plains Rarity: Common TYPE: Basic Land SUBTYPE: Plains CMC: 0 Mana cost: USD: $0.30 EUR: 0.32 TIX: 0.05 EDHREC RANK: - ( : Add .) Plains Rarity: Common TYPE: Basic Land SUBTYPE: Plains CMC: 0 Mana cost: USD: $0.23 EUR: 0.36 TIX: 0.05 EDHREC RANK: - ( : Add .) Polluted Delta Rarity: Rare TYPE: Land SUBTYPE: - CMC: 0 Mana cost: USD: $124.65 EUR: 72.04 TIX: 19.49 EDHREC RANK: 36 , Pay 1 life, Sacrifice this land: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle
You don't have to spend another mana just to get the extra ability
Theres a little competition from cards like Glare of Heresy and Revoke Existence that often do similar jobs, but I think well find that being an Instant is a lot more valuable than killing the few nonenchantment artifacts that see play and that there are enough nonwhite enchantments that you cant rely on Glare of Heresy to answer enchantments (though Glare of Heresy will keep seeing play, just not in a competing role with Deicide)