Golden Tulip

Appearance
A tulip that was half forged and half grown. Its petals are made from a light-infused gold alloy and decorated with silver and copper. The parts that should be green are of living platin and spiked with thorns.

Information
This is what happens when you have a benevolent being form naturally in a barrier, leave it alone long enough for it to amass enough power to become an archangel and then have it be so bored it picks up gardening.

Reference
Fought in Chapter 444 "In search of a heart 2 – Checklist"