Ring of Free Action
Ring, Rare (Requires Attunement)
While you wear this ring, If a space is Difficult Terrain, every foot of movement in that space costs 1 extra foot. For example, moving 5 feet through Difficult Terrain costs 10 feet of movement. Difficult Terrain isn't cumulative; either a space is Difficult Terrain or it isn't.
A space is Difficult Terrain if the space contains any of the following or something similar:
A creature that isn't Tiny or your ally
Furniture that is sized for creatures of your size or larger
Heavy snow, ice, rubble, or undergrowth
Liquid that's between shin- and waist-deep
A narrow opening sized for a creature one size smaller than you
A slope of 20 degrees or more
doesn't cost you extra movement. In addition, magic can neither reduce any of your Speeds nor cause you to have the While you have the Paralyzed condition, you experience the following effects.
Incapacitated. You have the Incapacitated condition.
Speed 0. Your Speed is 0 and can't increase.
Saving Throws Affected. You automatically fail Strength and Dexterity saving throws .
Attacks Affected. Attack rolls against you have Advantage .
Automatic Critical Hits. Any attack roll that hits you is a Critical Hit if the attacker is within 5 feet of you.
or While you have the Restrained condition, you experience the following effects.
Speed 0. Your Speed is 0 and can't increase.
Attacks Affected. Attack rolls against you have Advantage , and your attack rolls have Disadvantage .
Saving Throws Affected. You have Disadvantage on Dexterity saving throws.
condition.
Source: Dungeon Master's Guide, p. 293