Cheapest priced copy (Avacyn Restored): $1.29 at Card Kingdom, near mint, their price list as of .
Tibalt, the Fiend-Blooded 
Legendary Planeswalker — Tibalt · Mythic · Secret Lair Drop · #537
+1: Draw a card, then discard a card at random.
−4: Tibalt deals damage equal to the number of cards in target player's hand to that player.
−6: Gain control of all creatures until end of turn. Untap them. They gain haste until end of turn.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
3 printings · $1.29 to $9.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Avacyn Restored | 161 | Mythic | $1.29 | $9.99 |
| Duel Decks: Sorin vs. Tibalt | 41 | Mythic | — | $1.79 |
| Secret Lair Drop | 537 | Mythic | $5.99 | — |
2 rulings from Wizards of the Coast
- 1 May 2012The number of cards in the target player's hand is determined when Tibalt's second ability resolves.
- 1 May 2012When Tibalt's third ability resolves, all creatures will become untapped and gain haste, including ones you controlled before the ability resolved.