Thalassan

Amphibious   You can breathe air and water.   Aquatic Adaptation   You ignore the normal disadvantage imposed on melee weapon attacks underwater.   Currentborn   When you take the Dash action while swimming, you can move an extra 10 feet. You can use this feature a number of times equal to your Proficiency Bonus per Long Rest.   Streamlined Build   You have Advantage on ability checks and saving throws you make to resist being Grappled or moved against your will while underwater.   Languages   You can speak, read, and write Common and Aquan.   Thalassan Feats Tide-Hardened Body   Level 4+, Thalassan   Increase your Strength or Constitution by 1 (max 20).   • You have Advantage on Strength (Athletics) checks made to swim. • Once per Long Rest, you can ignore Difficult Terrain caused by water currents until the end of your turn.   Siren’s Call   Level 4+, Thalassan   Increase your Charisma by 1 (max 20).   • You learn the Thaumaturgy cantrip. • When you cast it, you can target creatures underwater normally. • You have Advantage on Charisma (Performance) checks made in aquatic environments.   Apex Mariner   Level 8+, Thalassan   Increase your Dexterity or Wisdom by 1 (max 20).   • While underwater, you have Advantage on Dexterity (Stealth) checks. • You gain proficiency in Perception or Survival (your choice).   Warden of the Reef   Level 12+, Thalassan   Increase one ability score by 1 (max 20).   • You gain Resistance to Poison damage. • You gain a 10-foot Tremorsense while submerged in water.   Lineage Variants Abyssal Thalassan   • You have Darkvision (60 ft.). • While in Dim Light or Darkness underwater, you have Advantage on Dexterity (Stealth) checks.   Reefborn Thalassan   • Once per Long Rest, while submerged, you can cast Misty Step. • You choose Intelligence, Wisdom, or Charisma as the spellcasting ability when you gain this trait.   Songcaller Thalassan   • You gain proficiency in Performance or Persuasion. • When you finish a Short or Long Rest, you can grant one creature within 30 ft. that can hear you Temporary Hit Points equal to your Proficiency Bonus.