I feel like I could start a discussion purely on Egis right now but I'll post my quick thought here. We got a good thing and bad thing at the same time. First Single Target and AoE Pets are a good thing, but the "Support-type Pet" is lacking in all areas.

Summon II should really be designed to help the summoner out but current it would be better to use Earthen Armor then use Summon III until you need a buff again. I would like to see the following changes be made:
Rock Buster - Addition effect: +10% chance of inflicting Stun for 2s.
Earthen Armor: N/A
Mountain Buster: Addition Effect: Knockback with Heavy Debuff
Earthen Fury: Addition Effect: Slow +5% (Shadowflare)

Ifrit really doesn't need an AoE attack since Garuda has that covered. I would also like to see Flaming Crush to changed to something like "Deals fire damage with a potency of 90. Additional Effect: Adds Fire damage over time. Potency 5 with a duration of 15s."

Enkindle needs something in the way of recast timer reduction or potency increase. It basically does 350 Potency every 2 mins. Ruin III does 200 Potency every 2.5s. Fester 400 every 15s. Akh Morn / Revelation is 650/680 every 60s? The point is it's very low for our Egi's signature move. Would a 60s recast time really over power Summoner?