Add a player version of the Demonspawn Black Mark spell to the negative energy facet

It replaces the second level of rN+ in that facet, giving melee attacks a
chance to apply antimagic/weakness/draining and a vampiric effect.

1 files changed, 11 insertions, 1 deletions

diff --git a/crawl-ref/source/mutation-data.h b/crawl-ref/source/mutation-data.h
index bd3cfa90ae..7d28964558 100644
--- a/crawl-ref/source/mutation-data.h
+++ b/crawl-ref/source/mutation-data.h
@@ -1635,5 +1635,15 @@
   {"You stop fuming.", "You fume less.", ""},
 
   "fumes"
-}
+},
 #endif
+
+{ MUT_BLACK_MARK,                  0,  1, false, false, false,
+  "black mark",
+
+  {"Your melee attacks sometimes drain vitality from your foes.", "", ""},
+  {"An ominous black mark forms on your body.", "", ""},
+  {"", "", ""},
+
+  "black mark"
+}