Two-part question, roughly in the same category.
Since Guild Training is a Hybrid feat for Rogue/Assassins, is it legal or fair to take both Guild Training abilities burning two feats?
Sly Flourish with Night Stalker: Guild Training.
Sly Flourish: Hit: 1[W] + Dex mod + Cha mod
Night Stalker: + Cha mod damage against any target that is adjacent to none of your enemies.
With both, do you get double the Cha mod in damage?