Predicate filter for multicolored lands

[Fettu]

I'm looking for a predicate filter to find lands that give multiple colors of mana, like for example anything that gives black and red mana. I'm completely new to this thing and i wouldn't know where to start. I looked at some tutorials but i came out dumber than when i started. Any help would be appreciated immensely, it's a pain browsing ALL lands just to find the ones i need.

[Rasser]

Using {U},{B},{W},{R},{G}. In whatever combo you want

Select text
type= land