Great guide man. But since Samuel is pretty squishy anyway, i think it's better if you swap out one of the defensive items for a tension bow. Both TB and his heroic perk have a 6 second cooldown, and with the extra CP ratio on his perk, that one hit can deal 600-800 damage (rough estimate), making him a sort of assassin. Also, that hit heals him, so it's sort of like a Krul's Spectral Smite

Why max B instead of A.