uncommon

Mana Leech

Siphon the arcane reserve — their MP becomes yours

magic (MA x Faith, mitigated by MDEF)

Job: Cursebrand
MP cost: 4
Charge: Instant
Power: 20
Range: 4 tiles
Area: single tile
Targets: enemy
Accuracy: sqrt(caster Faith x target Faith) + caster MA
JP to learn: 200
Element: dark

Rolling it

Nothing is guaranteed. At the start of each battle a unit's primary job rolls every ability it knows, one at a time.

As your primary job: 50%
As a sub-job draw: 30% of the bucket

Roughly one unit in 150 skips the roll entirely and fields its whole catalogue. If a unit rolls nothing at all, it is granted its cheapest ability rather than being sent out empty-handed.