Cheapest priced copy (Legions): $0.35 at Card Kingdom, near mint, their price list as of .
Master of the Veil 
Creature — Human Wizard · 2/3 · Uncommon · Legions · #43
Morph {2}{U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)
When this creature is turned face up, you may turn target creature with a morph ability face down.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
1 printing · $0.35 to $1.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Legions | 43 | Uncommon | $0.35 | $1.49 |
2 rulings from Wizards of the Coast
- 4 October 2004It can target itself and turn itself face down.
- 4 October 2004The trigger occurs when you use the Morph ability to turn the card face up, or when an effect turns it face up. It will not trigger on being revealed or on leaving the battlefield.