You know a few more potent magical tricks.

Prerequisite(s): Int 13, major magic and minor magic rogue talents, Lesser Arcane Tricks, 5th-level rogue

Benefit: You may cast one 3rd-level spell from the following list per day: keen edge, major image, secret page, and shrink item. Your caster level for these spells is equal to your rogue level. The save DC is equal to 13 + your Intelligence modifier.