Phasing (This phases in or out before you untap during each of your untap steps. While it's phased out, it's treated as though it doesn't exist.)
When this creature phases out or leaves the battlefield, mill three cards.
{U}: Until your next upkeep, this creature can't phase out.
Mana cost
1
U
Printings
From
$0.85
Reserved list
Never reprinted
Buy
Formats
Legacy
Legal
Vintage
Legal
Commander
Legal
Rulings
1 Apr 2008
Activating the activated ability will prevent Ertai’s Familiar from phasing out for any reason, not just due to its own phasing ability.