Epic Arcane Trickster

Type of Feat: Class Specific
Prerequisite: Arcane Trickster Level 11
Specifics:
Combining choice elements of the epic rogue and epic wizard, the epic arcane trickster is a force to be reckoned with, unless you're looking forward to having your vault looted.

Hit Die: d4
Skill Points at Each Additional Level: 4 + Int modifier

Spells: The epic arcane tricksters caster level increases by one per level gained above 10th. The epic arcane tricksters number of spells per day increases until his caster level reaches 20th.
Sneak Attack: The epic arcane trickster's sneak attack damage increases by +1d6 every 2 levels above 10th.
Impromptu Sneak Attack: The arcane trickster may use this ability one additional time per day for every four levels above 7th.
Ranged Legerdemain: The arcane trickster may use this ability one additional time per day for every four levels above 9th.
Bonus Feats: The epic arcane trickster gains a bonus feat (selected from the list of epic arcane trickster feats) every 4 levels after 10th.
Epic Arcane Trickster Bonus Feat List: (Automatic) Silent Spell, (Automatic) Still Spell, (Automatic) Quicken Spell, Blinding Speed, Epic Skill Focus, Improved Combat Casting, Improved Sneak Attack, Self-Concealment, Epic Dodge, (Greater) Spell Focus, (Greater) Spell Penetration.B