added new companion pets in patch 3.1, most are event rewards Argent Tournament. The good news is that you can buy most of them with 40 x Champions Seals (Sen'jin Fetish, Elwynn lamb, etc ...) and they do not bind when you pick it up, so you can sell it in the auction houses of your faction.
| Pet | Source |
| ammen vale lashling | Argent Tournament - 40 x Champions Seals |
| Dun Morogh Cub | Argent Tournament - 40 x Champions Seals |
| durotar scorpion | Argent Tournament - 40 x Champions Seals |
| Elwynn lamb | Argent Tournament - 40 x Champions Seals |
| Enchanted Broom | Argent Tournament - 40 x Champions Seals |
| Teldrassil Sproutling | Argent Tournament - 40 x Champions Seals |
| Tirisfal Batling | Argent Tournament - 40 x Champions Seals |
| mechanopeep | Argent Tournament - 40 x Champions Seals |
| mulgore hatchling | Argent Tournament - 40 x Champions Seals |
| Sen'jin Fetish | Argent Tournament - 40 x Champions Seals |
| Argent gruntling | Argent Tournament - Complete daily missions and become an Argent Tournament Campion |
| Argent squire | Argent Tournament - Complete daily missions and become an Argent Tournament Campion |
| Murkimus The Gladiator | [PVP] Arena Tournament- Play 200 arenas in the PvP Tournament |
| strand crawler | Reward Fishing missions. |
| Spring rabbit | noble garden - Random dispossession of the Bright colored eggs or bought with 100 x Chocolates from the noble garden |
| Plump turkey | ?? |
| Alarming clockbot | ?? |
| XS-001 Bot | Unknown, in ptr is obtained by combining 40 x Certificates of Appreciation |
Source: MMO Champion