Clerical Work: Specialty Priests of Bahamut for D&D 5th Edition

I'm starting development of Deities and Domains 2 and here's a preview, all of my previous feats are firmly rooted in ADnD 2E, but this one comes straight out of DnD 4E:

BAHAMUT
CHROMATIC BANE

Prerequisite: Cleric with the Life or War Divine Domain; Paladin with the Oath of Devotion

You have been called to serve the dragon god of good's banner. The Platinum Dragon demands intolerance for evil’s repugnance and tugs at your conscious so that the guilty do not go unpunished. Your vestments are metallic armor and a hooded cloak of light blue.

Thanks to your devotion, you gain the following benefits:

• All allies within 5 feet of you have advantage on saving throws against being charmed or frightened.
• When you are hit with an attack or a spell, as a reaction, you may roll a d6.  You and each ally within 10 feet gain a bonus equal to the number rolled to AC and saving throws until the end of your next turn. Once you use this ability, you can not use it again until your finish a short or long rest.
• As a reaction, you may free one ally that can see and hear you from the incapacitated or stunned condition. Once you use this ability, you can not use it agin until you finish a long rest.
• You learn the absorb elements spell and it is a domain spell for you.