GS Companion
Oberon's Rod

Oberon's Rod

6★ Heal Vital

Skill

40–46s CT - For 12s, heal all allies' HP by 420–600/s.

Numbers in a range are rolled when the equip is crafted.

Crafting

Fusion Type
Vital: a Vital Glyph raises the chance
Extra effects
0–2 at random: ATK UP, HP Recovery UP, Skill CT Speed UP, Break Power UP, CRI rate UP, Accuracy UP, Arts UP, BE Output UP, PHY DMG UP, MAG DMG UP, Cleanse a status ailment
Passive
3 of the same Crest Fragment can add that Crest's effect

Other 6★ Heal Fusion Equips

Ancient Cane
6★ Heal Buster

40–46s CT - For 12s, heal ◯ Element allies' HP by 504–720/s.

Soleil Baton
6★ Heal Buster

40–46s CT - Heal ◯ Element allies' HP by 3,024–4,320.

Good Mud Gloves
6★ Heal Thanatos

40–46s CT - Heal all allies' HP by 2,520–3,600.

Data from the Grand Crusade Guide by jeffers and .phex (Grand Summoners Official Discord).