PoTV updates

* Changed mana buff to a buff to mana regen rate instead.
* Set it so that Paragon of The Veil makes vortices ignore you. Also
tweaks summoned vortices to have mutli-species so this feature works
without breaking NPCs ignoring friendly vortices.
* Set it so that Paragon of The Veil prevents are further mutation
except for the restored ritual blade and pattern scrolls. This includes
trying to cheese Dragonblood while a Paragon of The Veil.
* Updated description to hint at this.

Arcana/monsters.json

@@ -761,7 +761,7 @@
     "type": "MONSTER",
     "name": "summoned vortex",
     "categories": [ "CLASSIC" ],
-    "species": [ "NETHER" ],
+    "species": [ "NETHER", "UNKNOWN" ],
     "path_settings": { "max_dist": 10 },
     "death_drops": {  },
     "melee_skill": 4,

Arcana/mutations.json

@@ -268,11 +268,14 @@
     "id": "THRESH_VEIL",
     "name": "Paragon of The Veil",
     "points": 1,
-    "description": "You have gazed deeper into The Beyond than anyone that still lives.  It has gazed back, and found greater purpose in you.",
+    "description": "You have gazed deeper into The Beyond than anyone that still lives.  It has gazed back, and found greater purpose in you.  The living wind it calls its herald, and you its knight under oath.  You will unable to mutate beyond your current state by mundane means, as this would tie you to intruders that must be cast out...",
     "valid": false,
     "purifiable": false,
     "threshold": true,
-    "mana_multiplier": 1.25
+    "//": "The good news, you regen mana faster and vortices are friendly.  The bad news, HFBTV doesn't want you getting any more dependant on the blob (or worse, the Mycus) than you already are.",
+    "mana_regen_multiplier": 1.25,
+    "ignored_by": [ "UNKNOWN" ],
+    "allowed_category": [ "VEIL", "ACIDSPRAY", "AGILITY", "CLAIRVOYANCE", "CLARITY", "CONFUSE", "FLAMEARMOR", "FREEACTION", "HEAL", "INSIGHT", "INVIS", "ELECRESIST", "MIGHT", "OVERGROWTH", "LIGHTNING", "CLERIC" ]
   },
   {
     "type": "mutation",