Returns the monster spoiler (TAEB::Spoiler::Monster) entry for this thing, or undef if the symbol does not uniquely determine the monster.
Return true if the player can definitely outrun the monster.
Returns true if the player could see this monster using infravision.
Returns the (base for now) speed of this monster. If we can't exactly tell what it is, return the speed of the fastest possibility.
How much damage can this monster do in a single round of attacks if it connects and does full damage with each hit?
How much damage can this monster do in a single round of attacks in the average case, accounting for AC?
