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Disintegrate


School transmutation; Level magus 6, sorcerer/wizard 6; Domain ash 7, destruction 7

CASTING

Casting Time 1 standard action
Components V, S, M/DF (a lodestone and a pinch of dust)

EFFECT

Range medium (100 ft. + 10 ft./level)
Effect ray
Duration instantaneous
Saving Throw Fortitude partial (object); Spell Resistance yes

By the way...
This spell deals 2d6 points of damage per caster level (maximum 40d6) to a ship.

Source Skull & Shackles Player's Guide