Summon forth Eden, or rather, a considerably smaller version of the gargantuan entity.
The existence of this miniaturized replica can be attributed─as with many, many other things─to a combination of aether and crystal, a fragment of which was discovered inside Eden itself. The result was this smaller likeness, which may be summoned at will and is *probably* less likely to trigger an apocalyptic catastrophe.
How to obtain:
Raid -- Eden's Promise: Eternity (Savage)