@Lun4rEclips3 You can replace them but only when they are off cooldown. Depeding on the rarity of the companion, their playing cooldown can be 1, 2, 4, 6 or 12 hours. (The little paw icon underneath the wolf will be brown when the companion is off cooldown, grey when its on cooldown). Once off cooldown, you can take a companion off or replace it with a different one. Or you can play with it for rewards.
