Yeah its FR
ok so i put dragging flail in if but since it was a late addition i had to put it in at epic tier. like i said this is all an idea feel free to toy with and change and mold to what you want.
At lvl 1
Background: Windrise Ports
Race: Revenant
Race in Life: Human
Language: Draconic
Language cause of benefit: Abyssal
Class: Assassin
Guild Training: Bleak Disciple
Skill Training: Perception, Acrobatics, Athletics, Bluff, Stealth
Feat: Spiked Chain Training (I chose this over Human Soul so you can wield the spike chain at lvl 1)
At Wills
Inescapable Blade
Shadow Storm
Enounter
Smothering Shadow
Daily
Grave Spike
Starting Ability Scores
STR 13 CON 14 DEX 17 INT 10 WIS 10 CHA 10
Lvl 2
Feat: Human Soul
lvl 2 Utility: Lurking Shadow
Lvl 3
Lvl 3 Encounter: Inescapable Shadow
Lvl 4
Feat: Two Weapon Fighting
Stat Increase: +1 Dex +1 Str
Lvl 5
Lvl 5 Daily: Twilight Assassin
Lvl 6
Lvl 6 Utility: Darting Shadows
Feat: Brutal Shroud
Lvl 7
Lvl 7 Encounter: Shadow Jack
Lvl 8
Feat: Weapon Expertise(Light Blade)
Stat Increase: +1 Dex +1 Con
Lvl 9
Lvl 9 Daily: Obscuring Shadow
Lvl 10
Lvl 10 Utility: Seeker of Shadow
Feat: Grave Dust Assassin
Lvl 11
Paragon Path: Shadowblade
Feat: Two Weapon Defense
Lvl 12
Feat: Spiked Chain Expert
Lvl 13
Lvl 13 Encounter: Flurry of Talons
Lvl 14
Feat: Sneak of Shadows
Stat Increase: +1 Dex +1 Str
Lvl 15
Lvl 15 Daily Death's Doorstep
Lvl 16
Lvl 16 Utility: Assassin's Defense
Feat: Weapon Focus(Light Blades)
Lvl 17
Lvl 17 Encounter: Mob of Shadows
Retrain: Assassin's Defense for Chain Ward
Lvl 18
Feat: Grave Dust Advantage
Stat Increase: +1 Dex +1 Str
Lvl 19
Lvl 19 daily: Guild of Shadows
Lvl 20
Feat: Spiked Chain Specialist
Lvl 21
Epic Destiny: Perfect Slayer
Feat: Light Blade Mastery
Retrain: Shadow Curse for Spiked Shackles
Lvl 22
Feat: Robust Defenses
Lvl 22 Utility: Soul of Death
Lvl 23
Lvl 23 Encounter: Wraith's Assault
Lvl 24
Feat: Blind-Fight
Stat Increase: +1 Dex +1 Con
Lvl 25
Lvl 25 Daily: Assassin's Scalpel
Lvl 26
Feat: Dragging Flail
Lvl 27
Lvl 27 Encounter: Shadows of Doom
Lvl 28
Feat: Two-Weapon Ambush
Stat Increase: +1 Dex +1 Con
Lvl 29
Lvl 29 Daily: Doom Foretold
Lvl30
Feat: Two-Weapon Threat
For items i am gonna throw out some ideas for your wish list
Weapon - Enhancement
Starting Lvl 1 - Spiked Chain
Heroic - Relentless, Subtle, Lifedrinker, Staggering. Dread, Graceful, Great Hunger, Vampiric, Blackshroud, Wraithblade
Paragon - Relentless, Subtle, Lifedrinker, Staggering. Dread, Graceful, Great Hunger, Vampiric, Blackshroud, Wraithblade, Jagged, Bloodiron, Withering
Epic - Relentless, Subtle, Lifedrinker, Staggering. Dread, Graceful, Great Hunger, Vampiric, Blackshroud, Wraithblade, Jagged, Bloodiron, Withering
Wraithblade is optimal so you can get sneak damage more often then just once an encounter.
I will draw up more item list later hope this helps!!