Hit Die: d6.
Skill Points at Each Additional Level: 4 + Int modifier.
Sneak Attack: The epic assassin's sneak attack damage increases by +1d6 every two levels after 9th.
Death Attack: The assassin counts only half his or her class levels beyond 10th when determining the DC to resist this attack.
Spells: The assassin's caster level is equal to his or her class level. The assassin's number of spells per day does not increase after 10th level.
Uncanny Dodge: The assassin's uncanny dodge bonus on saves against traps doesn't increase after 10th level.
Saving Throw Bonus against Poison: The assassin's bonus on saves against poison increases by +1 every two levels after 10th.
Bonus Feats: The epic assassin gains a bonus feat (selected from the list of epic assassin feats) every four levels after 10th.
Epic Assassin Bonus Feat List: Dexterous Fortitude, Dexterous Will, Improved Combat Casting, Improved Death Attack, Improved Sneak Attack, Improved Spell Capacity, Legendary Tracker, Lingering Damage, Sneak Attack of Opportunity, Spell Knowledge, Spontaneous Spell, Superior Initiative, Tenacious Magic, Uncanny Accuracy.
Table: The Epic Assassin
Level Special
11th Sneak attack +6d6
12th +6 save against poison
13th Sneak attack +7d6
14th +7 save against poison, bonus feat
15th Sneak attack +8d6
16th +8 save against poison
17th Sneak attack +9d6
18th +9 save against poison, bonus feat
19th Sneak attack +10d6
20th +10 save against poison