One of the big benefits of playing multiple races / teams / factions in what ever game you play is that you get to use different playstyles. You can only understand how an opponent is likely to play until you spend some time in their shoes, and although watching battle reports and talking with other players can help a lot, nothing is as great as playing the other armies/teams themselves.
However one danger is that you may bring across playstyles and tactics that don't really fit you new army/team or are hard to implement. I recent example for me was playing my new Norse after almost exclusively playing Skaven for so long.
This was amplified by recently playing against the Bloodbowl 2 AI for too many games. I mentioned last post that the poor AI can make a poorer player overtime, and my Skaven tactics were still working when I played Norse against the AI in most games. Most importantly that the AI does not always protect the ball carrier well, making it easy to threaten.
It was a rude awakening in a recent game playing against Choas Dwarves, aided by some initial bad luck. I kicked to the Chaos Dwarves instead of receiving. The Chaos Dwarves had induced a chainsword wielding psycho, so I blitzed it with my Yhetee on my turn 1, however I failed to break its armour (even with the +3 bonus from the chainsword), so he promptly stood and sent my Yhetee straight to the knocked out box. The game went downhill fast from there :(
So hoping to play a nice team to recover, I give you the match report from my Norse's next game: