The Red Bearon, being a replacement for the Amani War Bear, is the final loot card provided by the Drums of War expansion. This card gives you the Big Battle Bear mount which looks similar to the "Black War Bear", but lacks the armor. The actual fur color is "royal purple", but looks blackish on most screens. This mount comes in an epic form only, but is still free once redeemed. It also counts towards the Mountain o' Mounts achievement, which makes it even more worthwhile!