Astral Hypno is a debuffing spell that puts the target to sleep for a maximum duration of 20 seconds. The duration depends on individual monster level and debuff resistance; in harder raid battles, it can be lowered to 4 seconds. While asleep, the target cannot perform any actions. However, if the target receives any damage during this period, the effect of the spell is cancelled.
Because the cooldown period for Astral Hypno is only 5 seconds, it's possible for a skilled Enchanter to keep two enemies incapacitated simultaneously by repeatedly recasting the spell on both. Certain equipment can make this spell even more effective, hypothetically allowing a skilled caster to keep even three or four opponents frozen at once.
- Astral Hypno's maximum duration has varying descriptions. In Volume 1, it lasts "a mere dozen seconds" while in Volume 7, it can last up to 20 seconds (but only 4 seconds on the Orc Jellies due to their stats). The skill's atwiki description states the maximum duration is 10 seconds, based on the first volume's information.