Cheapest priced copy (Gatecrash): $0.99 at Card Kingdom, near mint, out of stock, their price list as of .
Gruul Ragebeast 
Creature — Beast · 6/6 · Rare · Gatecrash · #170
Whenever this creature or another creature you control enters, that creature fights target creature an opponent controls.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
1 printing · $0.99 to $1.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Gatecrash | 170 | Rare | $0.99Out of stock | $1.99 |
3 rulings from Wizards of the Coast
- 24 January 2013Gruul Ragebeast's triggered ability isn't optional. However, if no opponent controls a creature when a creature enters under your control, the ability will be removed from the stack.
- 24 January 2013If one or both of the creatures that are supposed to fight are no longer on the battlefield when the ability resolves, the fight won't happen. Neither creature will deal or be dealt damage.
- 24 January 2013If the target creature is an illegal target when the ability tries to resolve, it won't resolve and none of its effects will happen. Neither creature will deal or be dealt damage.