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Flaming Sphere

School evocation [fire]; Level druid 2, magus 2, sorcerer/wizard 2

CASTING

Casting Time 1 standard action
Components V, S, M/DF (tallow, brimstone, and powdered iron)

EFFECT

Range medium (100 ft. + 10 ft./level)

Effect 5-ft.-diameter sphere
Duration 1 round/level
Saving Throw Reflex negates; Spell Resistance yes

By the way...
This spell can start fires on a ship.

Source Skull & Shackles Player's Guide