Give ironbrand preservers a random band

Given that preservers are really only interesting when they are
around other creatures to protect, make sure they show up alongside
some of these creatures.

Bands are currently selected among most of the various humanoid bands
that can naturally spawn in Vaults (currently ogre mage, deep troll,
orc knight, or deep elf high priest, with equal weight), and are of
generally the same size. Quite possibly this list needs further
adjusting in various ways, but this is likely better than preservers
simply spawning on their lonesome and doing nothing of consequence.

1 files changed, 1 insertions, 0 deletions

diff --git a/crawl-ref/source/mgen_enum.h b/crawl-ref/source/mgen_enum.h
index 1749fc6f3a..be62665837 100644
--- a/crawl-ref/source/mgen_enum.h
+++ b/crawl-ref/source/mgen_enum.h
@@ -73,6 +73,7 @@ enum band_type
     BAND_LAMIA,
     BAND_POLYPHEMUS,
     BAND_VAULT_WARDEN,
+    BAND_OGRE_MAGE_EXTERN,
     NUM_BANDS                   // always last
 };