- "For such large artifacts, they always seem to be getting themselfs lost." — Gnarl
Spell Catalysts are used to upgrade the Spells that were collected as Spell Stones, found in Overlord II. The spells all start off at level 1, and can be upgraded to level 5 using these Spell Catalysts.
There are a total of twelve catalysts. However, here are nine of the catalysts to be found in the game. The other three catalysts can be won in the Battle Rock Arena.