Spark

Make an object catch on fire, much like with a flint & steel. At lower levels this is available to light unattended fine flammable objects. At higher levels, it can be used to get almost anything to catch fire.

Caster Level 1
Cause dry flammable object to catch fire

Casting Time: Standard Action | Action: Somatic | Cost: 1 mana

Range: Self (5 feet) | Duration: Instant | Target: Object

Failure Rate Hurdles:
 * First 5 times - Roll 1d6: Evens are failed
 * Next 5 times - Roll 1d6: 1&2 are failed
 * Until Level 4 - Roll 1d20: 1 is a fail.

Caster Level 2
Cause combustible objects to catch fire, including slightly damp flammable objects

Casting Time: Standard Action | Cost: 1 mana

Range: Self (5 feet) | Duration: Instant | Target: Object

Failure Rate Hurdles: 
 * 5 times - Roll 1d6: 1&2 are failed.
 * Until Level 6 - Roll 1d20 - 1 is a fail.

Caster Level 4
Cause anything damp but combustible (eg: wet wood, flesh) to catch fire. Dry flammable objects no longer have a failure rate, and can be sparked without cost to mana.

Casting Time: Standard Action | Cost: 1 mana

Range: Self (5 feet) | Duration: Instant | Target: Object

Failure Rate Hurdles: 
 * 5 times - Roll 1d6: 1&2 are failed.
 * Forever More: Roll 1d20 for damp combustibles (no matter what range)

Caster Level 6
Cause any combustible within a 30 foot range to catch fire. Anything combustible within a 5ft range no longer has a failure rate, and can be sparked without cost to mana.

Casting Time: Standard Action | Cost: 1 mana

Range: 30 feet | Duration: Instant | Target: Object

Failure Rate Hurdles: 
 * 10 times - Roll 1d6: 1&2 are failed.