Focus

The Focus skill represents your character’s ability to channel, sustain, and control magical or elemental forces. It measures concentration, precision, and the mental strength needed to wield powerful spells.

Focus is the skill used for:

Concentration checks: When you take damage while concentrating on a spell, roll Focus against half the damage taken (rounded down). On a failure, concentration is lost.
Magical damage bonus: When you deal damage with a spell, you gain bonus damage equal to half your Focus skill level (rounded down).
Spell learning: Your Focus skill level determines how many additional spells you may learn beyond your base known spells (see Spell Knowledge Limits in the Spells section).

Stunts

Arcane Conduit: When you deal magical damage, you may add your full Focus skill bonus to the damage instead of half.
Sustained Channeling: Once per scene, when maintaining concentration on a spell or magical effect, you may ignore one failed roll to sustain it. The effect continues without interruption as though the roll had succeeded.
Precise Empowerment: When you spend AP on Spell Empowerment, the first extra AP you spend grants both +1 to the spell roll and +2 to damage, rather than one or the other. Subsequent AP spent still follow the standard rules.
Elemental Overload: Once per scene, when casting an Elemental spell, you may spend 1 additional AP to apply two elemental type effects simultaneously instead of one. Both effects must come from the elemental damage type list.
Unyielding Concentration: When you take Physical or Mental Stress while sustaining a magical effect, you may roll Focus against a difficulty equal to the stress taken. On a success, the effect is not disrupted.