Whenever a creature you control attacks, it phases out at end of combat. (While it's phased out, it's treated as though it doesn't exist. It phases in before you untap during your next untap step.)
"I don't like to speak ill of 'walkers . . . but just what did Teferi think he was doing?"
—Ertai, wizard adept
Near Mint - $700
Lightly Played - $500
Moderately Played - $500
Heavily Played - $400
Damaged - $400
Near Mint Spanish - $700
Lightly Played Spanish - $500
Moderately Played Spanish - $500
Heavily Played Spanish - $400
Damaged Spanish - $400