Invisible
An invisible creature gains no benefits against creatures that can see invisible creatures.
The invisible creature has advantage on attack rolls.
Attack rolls against the invisible creature have disadvantage.
The invisible creature can hide even when in direct line of sight and has advantage on stealth checks.
The creature cannot be seen or targeted with attacks of opportunity or spells that require the caster to see the invisible creature.
Anything the invisible creature is wearing or carrying becomes invisible while being carried. If the invisible creature tries to carry something that encumbers them, the item they are trying to carry is not invisible.
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Notes
The invisible creature still leaves tracks and makes sound. We recommend that all creatures should know the location of an invisible creature in combat unless that creature is hiding. Note that some creatures or characters may be able to attack and hide in the same turn, and invisible creatures do not provoke attacks of opportunity, so some invisible creatures can attack, move, and then hide in an unknown location.
If a creature has blindsight, truesight, or some other way of seeing invisible creatures, the invisible creature gains no benefit against the creature that can see them.