Enter a state where summoning a full sized Avatar is possible. Let it drain your MP as long as you remain in this state. Be mindful that any attacks you do with your summoned avatar will also drain MP. Or do away with that and let the summoned state last about 10 seconds. Cooldown 2-3 minutes. Summoning full sized Avatars do require a lot of Aether as mentioned by lore, but no one said it couldn't be done for a few seconds. MP draining can signify the 'loss of Aether'
I don't know. Random passing thought.
