ToME: the Tales of Maj'Eyal

Took Aegis screwing around with Adventuror but got 0 mana restoration, what do i need to make it happen?

Manasurge runes give a .5/turn regen rate while you're resting, as well as some instant mana on use. There's also equipment that increases your per-turn mana rate, like staves of channeling or eldritch headgear.

Flat out mana regeneration only happens for a few classes. Adventurer is not one of them.

As was stated, a manasurge rune or certain item egos will give you mana regeneration.

You could also take Shadow Feed or Arcane Feed (the Shadowblade and Arcane Blade answer to mana regen).