Merrow (Berserk Supplement)
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Native to the Interstitial plane of Baoighre, merrow are fishlike humanoids capable of significant swimming speeds, breathing water, and projecting their voice in a "song" capable of injuring and destroying only what they wish. They have been known to occasionally form marriage-like bonds with humans or other merrow, in both cases being able to produce fertile offspring via live birth, with the former resulting in the birth of a half-merrow. Due to their magical nature, merrow birth comes with almost none of the risk of human birth. Half-merrow children can often be picked out by their flowing, blueish locks, their affinity for fish, and their skilled swimming.
Ability Score Increase. Either your Charisma or Dexterity increases by +2, and the score you did not pick increases by +1.
Age. Merrow mature at much the same rate as humans in their early life, but effectively stop aging in their late 20's or early 30's, where their aging coasts for the next 200 years.
Alignment. Hailing from a peaceful
Size. Merrow vary widely in height and build, from barely 5 feet to well over 6 feet tall. Regardless of your position in that range, your size is Medium.
Speed. Your base walking speed is 10 feet, and your swimming speed is 50 ft.
Amphibious. The lower half of your body is a large, fishlike tail, and your neck has slatted gills across its surface. You can breath both air and water, and you are prone whenever you can not use your swimming speed.
Merrow's Song. As an action, you can cast the Merrow's Song spell without communing. You may do this a number of times equal to your Charisma modifier, regaining use at the end of a long rest.
Darkvision. You can see in dim light within 60 feet of you as if it were bright light, and in darkness as if it were dim light. You can't discern color in darkness, only shades of gray.