Fix vampires shifting into fog clouds as an escape method because this doesn’t currently work with fog clouds being slow and easily killed.

• Normal fog clouds can still be slow, but vampshifted fog clouds should have their regular form’s speed.
• Fog clouds in general should be very hard to land a hit on, with “your attack passes harmlessly through” like a ghost nearly all the time (allowing critical hits only?), or all of the time, if you are not engulfed. Fog clouds that are fleeing, like vampires running away, will not engulf the player.
• If a vampshifted fog cloud is pinned down and has nowhere to go, it can pass through the squares of a number of monsters blocking its way and land somewhere else, provided that space is within a few spaces. This prevents the player from trapping it in a corner and beating it to death.
• At some point, the vampire must turn itself back to normal, and not stay in fog cloud form forever.

Add YAFMs:

• Combat messages produced when you attack a hallucinogen-distorted fog cloud are replaced by “You attack thick air.”
• When you try to engrave when engulfed by a dust vortex: “You try to write in the dust, but it won’t stand still!”
• When you get out of an air elemental (that you didn’t kill) while hallucinating: “I don’t think we’re in Kansas anymore.”
• When you attempt to move into a Mordor orc with the m prefix: “You fail to simply walk into the Mordor orc.”
• When a sasquatch is blinded by a camera flash: “Unfortunately, that picture’s probably going to come out blurry.”

Fog horn, a magical tool that when played surrounds the user with clouds and possibly fog clouds (the monster). It would be best if some type of non-poison-gas cloud were implemented first; it is probably a bad idea to actually change the terrain around the user into cloud.

Fog clouds block line of sight.