Rules Glossary — page 183

enough for you to assist verbally or physically when they make an ability check. That ally has Advantage on the next ability check they make with the chosen skill or tool. This benefit expires if the ally doesn't use it before the start of your next turn. The GM has final say on whether your assistance is possible.

Assist an Attack Roll. You momentarily distract an enemy within 5 feet of you, giving Advantage to the next attack roll by one of your allies against that enemy. This benefit expires at the start of your next turn. Heroic Inspiration If you (a player character) have Heroic Inspiration, you can expend it to reroll any die immediately after rolling it, and you must use the new roll.

If you gain Heroic Inspiration but already have it, it's lost unless you give it to a player character who lacks it. Hide [Action] With the Hide action, you try to hide yourself. To do so, you must succeed on a DC 15 Dexterity (Stealth) check while you're Heavily Obscured or behind Three-Quarters Cover or Total Cover, and you must be out of any enemy's line of sight; if you can see a creature, you can discern whether it can see you.

On a successful check, you have the Invisible condition while hidden. Make note of your check's total, which is the DC for a creature to find you with a Wisdom (Perception) check.

You stop being hidden immediately after any of the following occurs: you make a sound louder than a whisper, an enemy finds you, you make an attack roll, or you cast a spell with a Verbal component. High Jump When you make a High Jump, you leap into the air a number of feet equal to 3 plus your Strength modifier (minimum of 0 feet) if you move at least 10 feet on foot immediately before the jump. When you make a standing High Jump, you can jump only half that distance. Either way, each foot of the jump costs a foot of movement.

You can extend your arms half your height above yourself during the jump. Thus, you can reach a distance equal to the height of the jump plus 1 1/2 times your height. Hit Point Dice Hit Point Dice, or Hit Dice for short, help determine a player character's Hit Point maximum, as explained in "Character Creation." Most monsters also have Hit Dice. A creature can spend Hit Dice during a Short Rest to regain Hit Points. See also "Short Rest." Hit Points

Hit Points (HP) are a measure of how difficult it is

to kill or destroy a creature or an object. Damage reduces Hit Points, and healing restores them. You can't have more Hit Points than your Hit Point maximum, and you can't have less than 0. See also "Breaking Objects" and "Playing the Game" ("Damage and Healing"). Hostile [Attitude] A Hostile creature views you unfavorably. You have Disadvantage on an ability check to influence a Hostile creature. See also "Influence." Hover Some creatures can hover, as noted in their stat blocks, and some spells and other effects grant the ability to hover. Hovering while flying prevents you from falling in certain circumstances.

See also "Flying." Illusions Spells and other effects sometimes create magical illusions. Such an effect defines what the illusion does and which senses or mental faculties it deceives.

If an illusion manifests in space, the illusion is insubstantial and weightless, yet it seems to be affected by the environment as if the illusion were real unless the effect that created it specifies otherwise. For example, a visual illusion of a creature casts shadows and reflections, and wind appears to affect the illusory creature. Similarly, an audible illusion echoes in an echoey space. Immunity If you have Immunity to a damage type or a condition, it doesn't affect you in any way. Improvised Weapons An improvised weapon is an object wielded as a makeshift weapon, such as broken glass, a table leg, or a frying pan.

A Simple or Martial weapon also counts as an improvised weapon if it's wielded in a way contrary to its design; if you use a Ranged weapon to make a melee attack or throw a Melee weapon that lacks the Thrown property, the weapon counts as an improvised weapon. An improvised weapon follows the rules below.

Proficiency. Don't add your Proficiency Bonus to attack rolls with an improvised weapon.

Damage. On a hit, the weapon deals 1d4 damage of a type the GM thinks is appropriate for the object.

Range. If you throw the weapon, it has a normal range of 20 feet and a long range of 60 feet.

Weapon Equivalents. If an improvised weapon resembles a Simple or Martial weapon, the GM may say it functions as that weapon and uses that weapon's rules. For example, the GM could treat a table leg as a Club.