ETCHEDCheapest priced copy (Commander Legends: Battle for Baldur's Gate): $0.49 at Card Kingdom, near mint, their price list as of .
Avatar of Slaughter 
Creature — Avatar · 8/8 · Rare · Commander Masters · #529
All creatures have double strike and attack each combat if able.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
5 printings · $0.49 to $0.79 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander Legends: Battle for Baldur's Gate | 779 | Rare | $0.49 | — |
| Commander Anthology | 77 | Rare | $0.59 | — |
| Commander 2011 | 111 | Rare | $0.79 | — |
| Commander Masters | 206 | Rare | $0.59 | $0.79 |
| Commander Masters | 529 | Rare | — | — |
One ruling from Wizards of the Coast
- 22 September 2011If, during a player's declare attackers step, a creature is tapped, is affected by a spell or ability that says it can't attack, or hasn't been under that player's control continuously since the turn began (and doesn't have haste), then it doesn't attack. If there's a cost associated with having a creature attack, the player isn't forced to pay that cost, so it doesn't have to attack in that case either.