Skill name: Counter spell
Type: spellcasting skill
Usage: set counter [<name> | all | none]

Attempts to counter all spell cast on you.
If <name> definied, also counters all spells cast by <name>.
If argument "all" given, attempts to counter all spells cast
by other living beings at the same location.
If argument "none" given, the skill is disabled.
This skill does not work on divine spells.
