D&D 4e — Player resources

Shared reference that never changes — it applies to every character regardless of class or race.

Values by Level (1–30)

Level	Tier	½ Level	Defense 10+½	XP to Level	Mod+½Lvl @ score 10

Formula key

½ Level: floor(Level ÷ 2)
Ability modifier: floor((Score − 10) ÷ 2)
Mod + ½ Level: Ability modifier + ½ level
Initiative: DEX mod + ½ level + misc
Defense: 10 + ½ level + ability + class + feat + enhance + misc + armor
Skill bonus: Ability mod + ½ level + 5 if trained + armor penalty + misc
Attack bonus: ½ level + ability + class + prof + feat + enhance + misc
Passive Insight / Perception: 10 + listed skill bonus
Bloodied / Surge: ½ max HP / ¼ max HP (round down)

Universal actions

Every character can use these actions, no matter their class or race.

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