how do i summon bahamut?

i am arcanist smn lvl 70
and i just acquired the
summon bahamut spell
but i cant seem to make
it work.
i have 2 aether and a summoned pet like required,
but it still wont summon.

can some 1 explain to me pls?

You need Dreadwyrm Aether, not Aetherflow. Basically you have to use Dreadwyrm Trance twice to get 2 stacks then you can summon Bahamut.

There is a trait at lvl 72 which makes you summon Bahamut after only 1 Dreadwyrm Trance by giving you 2 stacks instead of 1.

thank you kind sir