Crystal Invoke

There are two methods of Crystal Invocation.
 * Single Invoke requires 5 crystals and invokes one spirit randomly.
 * Mega-Invoke costs 50 crystals. It is equivalent to doing ten single invokes except you are guaranteed one A Rank Spirit.

Events frequently modify Crystal Invocation such as adding limited edition Spirits, increasing chances of A Ranks, or allowing for re-invocation/redos. It's best to save your crystals until one of these events.

Unlimited Spirits
These Spirits are always available. This table shows the spirits available and a comparison of their final forms.

Limited Edition Specials
These Spirits or changes to the invoke mechanics were only available for a limited time. (A day/month/year format is used)