I like everything about deadly stroke except for dazzling display...I almost feel it's better to intimidate a single opponent and move in to focus them down rather then spend your first round wiggling your sword about. If you're lucky enough to have an Inquisitor in your party, have that horrifying individual give someone the stink-eye (Since they'll probably go before you anyway and their intimidate will probably last a while.) If you're fighting mindless things, that's an awful lot of useless feats unless you have an Antipaladin.
If you're Cockatrice I suppose Dazzling Display is alright, but you're giving up Warrior or Sword and that's not a good trade off abilitywise. Needing Charisma in a class that needs strength, constitution, Wisdom (to cover their low will save) and even dexterity to properly fill out O-Yoroi armor is harsh.
Dazzling Display is underwhelming and it makes my heart sad.