The Lusitano Nag is the second horse unlocked in multiplayer. It is an upgrade from the much slower Mule, but is rather frail-looking, and is the slowest horse mount in the game.
In single player, the player may purchase this horse for $250 from the General Store in various towns. It is a slow speed horse, even slower than the first horse the player obtains from one of Bonnie MacFarlane's missions. Horses who's names start with "sickly" look like this.
Note: prices listed on this page are based upon the player having neutral honor. If the player has high honor, the selling price will be increased by 50% everywhere except Thieves' Landing. Low Honor decreases selling price by 50% everywhere except Thieves' Landing.
In multiplayer, the Nag is unlocked at level 4 regardless of Legend rank. It is also the horse that players, in some competitive Gang Shootouts, can use due to balance issues.