From TFCWiki - The Final Challenge MUD's Player Information Resource
ACID 'ACID BLAST'
Give an opponent a painful blast of acid, and possibly ruin their armor.
Acid blast is available to:
Mages : level 20. Any Alignment.
- Area Spell. At level 30 mage this spell costs 20 mana. If a mob casts acid blast there is a high likelihood of your equipment getting etched and your bags burnt. This will happen if a player casts it on you as well, but only if that player is justified against you. The efficiency of this spell in etching equipment and burning bags is related to the amount of saves you are wearing (with more -svs meaning you are safer from the attack).