Strength - Contributes to: Stamina Regeneration and Physical Damage Boost
Dexterity - Contributes to: Critical Severity and Movement Speed
Charisma - Contributes to: Companion Influence and Recharge Speed
Campaign Boons
These I will skip for right now because, again, the bonuses for each point are so minimal and the choices are less relevant for class/role/play-style that pretty much everyone will be choosing the same boons.
Stronghold Boons
Offense - Choose the Power Bonus
Defense - Choose the Hit Point Bonus
Utility - Choose the Healing Potion Bonus
Powers

At-Wills

Encounters

Dailies

Mechanic

Class Features

Feats

Rotation
As you approach the enemy, activate Stealth followed by Deft Strike, Assasinate, and Lashing Blade, filling in with Duelist's Flurry and Gloaming Cut for enemies who are a little further away. Use your Roll mechanic to stay out of red areas and use your dailies as necessary, Shocking Execution for single targets and Bloodbath for multiple targets.