Cheapest priced copy (Magic 2011): $0.35 at Card Kingdom, near mint, their price list as of .
Bloodcrazed Goblin 
Creature — Goblin Berserker · 2/2 · Common · Magic 2011 · #125
This creature can't attack unless an opponent has been dealt damage this turn.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Magic 2011 | 125 | Common | $0.35 | $0.49 |
5 rulings from Wizards of the Coast
- 15 August 2010For Bloodcrazed Goblin to be able to attack, an opponent must have been dealt damage that turn before the declare attackers step begins. The damage must have been noncombat damage of some sort, or it was combat damage and an additional combat phase has been created.
- 15 August 2010Bloodcrazed Goblin’s ability checks only whether damage was dealt to an opponent. It doesn’t care whether that opponent also gained life. For example, if an opponent was dealt 4 damage and gained 6 life during the turn, that player will have a higher life total than they started the turn with — but Goblin Berserker will still be able to attack.
- 15 August 2010If Bloodcrazed Goblin attacks, it doesn’t have to attack the opponent who was dealt damage. It can attack a planeswalker. In a multiplayer game, it can attack a different opponent.
- 15 August 2010It doesn’t matter how an opponent was dealt damage, or even who controlled the source of the damage.
- 15 August 2010If damage would have been dealt to an opponent but it was all prevented, redirected, or otherwise replaced, Bloodcrazed Goblin won’t be able to attack.