Druids have 3 main spells to be used while hunting:
- Eternal Winter/Wrath of Nature (exevo gran mas frigo/ exevo gran mas tera): 40 seconds cooldown
- Strong Ice Wave (Exevo gran frigo hur): 8 seconds cooldown
- Terra wave (exevo tera hur): 4 seconds cooldown.
Attacks are made every 2 seconds, so the spell rotation I normally do is:
- Strong ice wave.
- Terra wave (second 2)
- Area rune (avalanche, gfb...)
- Terra wave
- Back to nº1
The 'UE' is used when most of the creatures are red HP to 'finish' them, at least that's the moment I like to use it; other people uses it at the beginning of the 'pull' to maximize its damage, but you need to consider that the ue makes your other attack spells to get cooldown as well for 4 seconds (2 turns of attacks).
About going or not in mana shield, it is up to you, the way you hunt solo and in team and your ability. I like to go without do a sio on the ek and a mas res that heals me and him; and when the situation is more risky put on an energy ring if necessary and do sio on him only without healing myself.