True Casting

(Complete Mage, DnD 3.5)

Divination

Level: ; Sorcerer/Wizard 1
Components: V, S
Casting Time: 1 standard action
Range: Personal
Target: You
Duration: One spell

You focus your magic deep in your sold until it becomes a torrent that must be unleashed.
Your next single spell (if it is cast before the end of the next round) gains a +10 insight bonus on any caster level check made to overcome spell resistance.