Normal: The target changes their shape into it's true form as you see it.

You must The target must succeed a fortitude save or is transformed into any creature as if using a transmutation polymorph spell of level 5 or lower. The creature loses its racial abilities. You may choose if the creature may keep the ability to speak and use their non-racial spell-like abilities. However, the CR of the creature is capped at half the caster level round up.

The target cannot change its shape until it is affected by the break enchantment spell or moly root is consumed.

When you used truest form on a character, you may not select any other form for the creature.