Hi, I would like to know in which expansion battle packs can I get this Chaos Hero?

Been going through all the brief descriptions of cards in which battle packs but so far no info on the which battle pack this card is in :/

Thanks in advance.

Bule, Lord of Pus is in the 'Path of the Zealot' Battle Pack. Cheers!

For future reference, you can find a searchable database of all cards at deckbox.org. It will tell you what card a set is from, or the list of all cards in a set.

Now that's really useful, thanks