Providing protection from two colors often renders the equipped creature unblockable, untargetable, and undamageable by at least one person at the table, which dramatically raises your odds of getting to repeatedly use your swords effects
When you do, put a +1/+1 counter on target creature and draw a card
Another player may be doing something so wicked that Jaya's blaze will be overlooked
The Steel Wall can block for a very long time, though it's usually wiped away eventually
Otherwise, chances are that the game will end up in a draw if there are no benefits from infinite enter-the-battlefield triggers, so be aware of that
Dragonspeaker ShamanDragonspeaker Shaman cares about Dragons rather than other Barbarians, but caring about Dragons might be an interesting element of future Barbarian typal synergies