Black Outpost

Persist, ambivalent (You may pay {2} for {b}.)
Whenever Black Outpost comes into play, attach
it to a land you control. It is guarded.
(redirect target spells, abilitys and damage from
guarded permanents to this card.)
{t}: Add {b}
Enter {b} (play this abilitys only as a sorcery.)
Creatures entered this building or an attached
place have "+2/+1, defender and {b}: Regenerate".