Boon of the Tides

Epic Boon Feat (Prerequisite: Level 19+, gifted by a powerful water elemental or related deity)

You gain the following benefits.

Ability Score Increase. Increase Constitution by 1, to a maximum of 24.

• Water's Embrace: As an action, you can call upon the elemental power of water to cloak yourself in a protective watery shield. This shield grants you temporary hit points equal to half your wizard level + your Intelligence modifier. While this shield is active, you gain resistance to fire damage. The shield lasts for 1 hour or until its temporary hit points are depleted. You can use this ability once per long rest.
• Tideweaver: You gain the ability to cast Tidal Wave and Watery Sphere once each per long rest without expending a spell slot. Additionally, when you cast Control Water, it now has an extended range of 500 feet and a duration of up to 10 minutes.
• Guardian of the Sanctuary: When within your domain, you can sense the presence of any creatures in or near bodies of water, including lakes, rivers, and underground reservoirs. This sense provides you with a rough location and the general nature (friendly, hostile, etc.) of any creature within 60 feet of a water source.
• Tidal Communion: Once per long rest, you can communicate telepathically with the Tideguard Elemental (the elemental who provided this boon), regardless of distance within your domain. This connection allows you to call upon its aid, either for information or direct assistance.