FOILCheapest priced copy (Born of the Gods): $0.49 at Card Kingdom, near mint, their price list as of .
Pain Seer 
Creature — Human Wizard · 2/2 · Rare · Born of the Gods Promos · #80
Inspired — Whenever this creature becomes untapped, reveal the top card of your library and put that card into your hand. You lose life equal to that card's mana value.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
2 printings · $0.49 to $0.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Born of the Gods | 80 | Rare | $0.49 | $0.49 |
| Born of the Gods Promos | 80 | Rare | — | $0.99 |
6 rulings from Wizards of the Coast
- 1 February 2014If the mana cost of the revealed card includes {X}, X is considered to be 0.
- 1 February 2014Inspired abilities don't trigger when the creature enters the battlefield.
- 1 February 2014If the revealed card doesn't have a mana cost (because it's a land card, for example), its mana value is 0.
- 1 February 2014If an inspired ability triggers during your untap step, the ability will be put on the stack at the beginning of your upkeep. If the ability creates one or more token creatures, those creatures won't be able to attack that turn (unless they gain haste).
- 1 February 2014Inspired abilities trigger no matter how the creature becomes untapped: by the turn-based action at the beginning of the untap step or by a spell or ability.
- 1 February 2014If the inspired ability includes an optional cost, you decide whether to pay that cost as the ability resolves. You can do this even if the creature leaves the battlefield in response to the ability.