Quote Originally Posted by Spellbinder View Post
If you're referring to the live letter where Yoshi-P gave a run down of the changes coming for jobs in Heavensward, he was explaining that it would make summoner a more interesting job if they focused on giving the caster more skills rather than giving us more pets with similar actions. Aside from the upcoming glamour system, there is no indication of new skills or utility outside of the changes we saw with 3.0. Though I will say, it's great to see food (and perhaps even X-Potions) have an effect on pets now.
Xpots indeed effect pets.

Quote Originally Posted by ShinryuReishiki View Post
I just tested with Ifrit on a dummy. Was seeing 363-400 damage Burning Strikes, and as soon as I popped an X-Pot, numbers jumped well over 400. Spur wasn't required.