Spellpower

According to the Toolset Wiki, spellpower is probably the most important stat for a mage character and only exists on mage characters. It is calculated as Magic - 10 (with a minimum of 0) and therefore increases by one point for every point a mage spends on his Magic attribute.

Most mage spells benefit directly from higher spellpower by increased damage, effect magnitude and duration. It also plays a role in a mages ability to overcome mental or physical resistance on a target (where applicable). The actual impact of spellpower on an ability varies from spell to spell but the most common construct equates to something like 1% increase in spell potency per point of spellpower. Thus, items and spells that increase spellpower are very powerful as they increase the potency of every spell the mage can cast.

Spellpower is the only factor that causes an increase of a spells potency over time, so a level 20 mage with neglected the Magic attribute would be much less powerful than a mage that didn't neglect Magic.

Some examples:


 * The damage potential for Winter's Grasp is calculated as (100 + spellpower of caster) * 0.36
 * The healing potential for the Heal spell is calculated as (100 + spellpower of caster) * 0.40

Note that these formulas only list the raw damage potential and do not take into account the effects of damage types, difficulty, rank, resistances, magical shields and any other mitigating factors on the target or enhancing factors on the caster. This means that just comparing the numbers will not give you an idea which spell is better or worse.

For non-mage spells and abilities, spellpower is often substituted by an appropriate other construct (such as Cunning - 10 with a minimum of zero for rogue abilities).