Here we have Amethyst Rain's different forms. From left to right we have the merged form, tiny form, and summoned form.

Merged form is when he is merged with his bound partner. In this case that is Tyr.

Tiny form is when he is in a parrot sized companion form.

The last is his summoned form when he is summoned but not merged with his bound partner.

I love how this came out. Especially the merged form.

Art by  Timothy-Henri