Whenever equipped creature dies, draw two cards
Red XIII offers a nice Vigilance and Trample boost, which pairs well with any raw stat buff from an Equipment
As far as asymmetrical hatebears go, this is one of the strongest in the Commander format
Gannon dwarfs the competition by offering Azorious recursion at no extra cost no mana, or cards to discard, just the mana to cast the spell
(When this Equipment enters, create a 2/2 red Rebel creature token, then attach this to it.) Equipped creature gets +2/+2
The best way to improve this mana base is by adding more utility lands, as you can sometimes find yourself with lots of mana and nothing to do with it