Missing teams?

[LankySi]

I'm looking to get back into Blood Bowl. I have a couple of teams from when I used to play this back in the 90s. However, I'd love to play as Undead. Where can I get an undead team from? You used to be able to get boxed teams for pretty much all of the major races, now, it seems, they're rather limited. I can't seem to find an Undead team except for very expensive (over £100) for an old Champions of Death box, which I'm not really prepared to pay.

Any advice would be appreciated. Thanks