Im gonna show my rotation in different situations. All these without momentum.
Remember that Ice Burst Spell and Earth Burst share cooldown
If the boss is:
- Ice: Weak/Neutral
- Earth: Neutral
exevo ulus frigo
exevo tera hur
exevo gran frigo hur
exevo tera hur
RUNE (Sd, Ava... etc)
exevo tera hur
exevo gran frigo hur
exevo tera hur
RUNE
exevo tera hur
exevo ulus frigo
Repeat
If the boss is:
- Ice: Weak/Neutral
- Earth: Immune
exevo ulus frigo
exevo gran frigo hur
RUNE
RUNE
RUNE
exevo gran frigo hur
exevo gran frigo hur
exevo ulus frigo
RUNE
RUNE
exevo gran frigo hur
If the boss is:
- Ice: Immune
- Earth: Weak/Neutral
exevo ulus tera
exevo tera hur
rune
exevo tera hur
exevo ulus tera
My recommendation about UE's is to forget about "Exevo gran mas tera" and keep "Exevo gran mas frigo" to kill summons or to finish the boss.