Rough Draft....

Locate Creature Type
Divination
Level: Cleric 6, Knowledge 6, Sor/Wiz 6
Components: V, S, F/DF (Focus: Divining Rod)
Casting Time: 10 minutes
Range: Unlimited
Target: One creature
Duration: Instantaneous
Saving Throw: None
Spell Resistance: None

Select a creature type (i.e Dragon), and/or optionally, subtype. It locates the nearest creature of that type within range, regardless of CR/MR. If there are two at the same distance, it identifies one at random. It can not locate Mythic creatures in this manner.

Mythic: If cast as a Mythic Spell, this spell can be used to locate the nearest creature with the Mythic subtype.

If cast in this way, it automatically ignores known mythic creatures if the caster desires. (i.e it would ignore the casters companions, and something they knew was in the area, at their choice)

Augmented: At 3rd tier, for the cost of 2 users of mythic power, it will locate 1d4+1 creatures in range (including those with the mythic subtype) or it will inform the caster of the CR/MR of the subject.

Augmented: At 5th tier, for the cost of 2 users of mythic power, it will locate 1d4+1 creatures in range (including those with the mythic subtype), and inform the caster of the CR/MR.

Divine Focus: Holy Symbol.
Arcane Focus: Divining Rod made out of silver.