SMN question

[Rongway]

It's to give Ifrit four restricted but high power spells without making you stand immobile for 12s. Two of the casts cost standing still and two of the casts cost putting you in melee range. But if you take a particular fight's timeline into consideration when you choose what order to summon your gemstone primals in, you can take advantage of the gap closer instead of making it a cost.