Cheapest priced copy (Weatherlight): $1.29 at Card Kingdom, near mint, their price list as of .
Ertai's Familiar 
Creature — Illusion · 2/2 · Rare · Weatherlight · #38
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.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
1 printing · $1.29 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Weatherlight | 38 | Rare | $1.29 | — |
One ruling from Wizards of the Coast
- 1 April 2008Activating the activated ability will prevent Ertai’s Familiar from phasing out for any reason, not just due to its own phasing ability.