Warrior Cross-Class Abilities from Pugilist are Useless 3/3 (Finally! :P)
... but still i don't see any reason for Warrior not having acess to this Keen Flurry parry ability. Regarding Invigorate, Warrior is a tank class that uses a lot of TP when spamming Overpower to aggro and contol mobs so it is my opinion that Warrior should have acess to this ability. For comparison, i don't understand why Bard has Invigorate and Warrior doesn't. Bard has acess to 2 TP regeneration abilties (Invigorate and Army's Paeon) while Warrior has acess to... none. This is very unfair and poorly designed in my opinion. In long boss fights Invigorate could be a life savior ability in the future. For last but not least, since I like to think of Warrior as a tank class that drains HP from their enemies, Life Surge would then again make perfect sense for Warrior to use. Its HP recovery would be similar to Second Wind, but still i can relate more (in Warrior's perspective) to an ability that drains HP from your enemy through an attack that an auto-cure ability like Second Wind.