You fight Ifrit in FFXV on Chapter 14. I took this battle as an opportunity to explore the astral summon animations. Whenever Ifrit is on full fire, there is no point on attacking him as near no damage will be done. A good thing to do is to warp-point anywhere you want and wait until his fire dies out, as soon as it does that is the best time to attack him as it does the most damage. You can also call summons if you like like i did, though do remember he has two stages of the battle.
![](https://i.ytimg.com/vi/jMfARB5AHnU/maxresdefault.jpg)