Reference

Actions, combat rules, conditions, skills, feats and languages. Search by name.

During play

Actions Every combat action and what it does: Attack, Dash, Disengage, Dodge and more.

Conditions Every condition and what it does to a creature

Combat Rules Cover, advantage and the core combat rules

For your character

Feats Character feats from every source, with their prerequisites.

Skills Skills and the abilities behind them

Optional Features Eldritch invocations, maneuvers, metamagic and fighting styles

Languages From Common to Abyssal, with their scripts

Deities Gods by pantheon, with alignment, cleric domains and symbol

Combat Rules

Hit Point Dice

Source: XPHB

Hit Point Dice (or Hit Dice) are dice tied to your class and level that represent your physical resilience.

You have a number of Hit Point Dice equal to your character level, each die being the type shown in your class table.

During a Short Rest, you can spend one or more Hit Point Dice to regain Hit Points, rolling each die and adding your Constitution modifier per die.

You regain all expended Hit Point Dice when you finish a Long Rest, though you can't regain more than half your total number of Hit Point Dice this way (minimum of one).