Teferi's Realm

World Enchantment, 1UU (3)
At the beginning of each player's upkeep, that player chooses artifact, creature, land, or non-Aura enchantment. All nontoken permanents of that type phase out. (While they're phased out, they're treated as though they doesn't exist. Each one phases in before its controller untaps during his or her next untap step. )¹
"Fire is dead. Water has killed him." -From The Stories of Nature
Illus. Alan Rabinowitz

Gatherer Card Rulings [Nov 2009]

• 10/4/2004: Does not affect token permanents, only cards.
• 8/1/2005: Can affect itself if you choose "non-Aura enchantment".
• 10/1/2008: This has the supertype world. This supertype is similar to legendary. The difference is that when a world permanent enters the battlefield, any world permanents that were already on the battlefield are put into their owners' graveyards. This is a state-based action called the "world rule." The new world permanent stays on the battlefield. If two world permanents enter the battlefield at the same time, they're both put into their owners' graveyards.

Format Legality	Legal in Vintage, Legacy Banned in Extended, Standard
Printings (1/6)	Visions (Rare)