Teferi's Veil

Enchantment, 1U (2)
Whenever a creature you control attacks, it phases out at end of combat.¹
"I don't like to speak ill of 'walkers'... but just what did Teferi think he was doing?" -Ertai, wizard adept
Illus. Brom

Crystal Keep Rulings Summaries

• Remember that if there is more than one thing scheduled for the end of combat to use the "active/current player's abilities first in any order they choose, then the other player's abilities in any order they choose" rule for placing the abilities on the stack. For example if a Fog Elemental attacks and you control a Teferi's Veil, you get to choose which of the "phase out" or "bury" effects happens first (and the other one fails to happen). [D'Angelo 1999/07/10]

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