Optional Class Features
You gain class features in the Player’s Handbook when you reach certain levels in your class. This section offers additional features that you can gain as a barbarian, druid, and rogue.
Unlike the features in the Player’s Handbook, you don’t gain the features here automatically. Consulting with your DM, you decide whether to gain a feature in this section if you meet the level requirement noted in the feature’s description. These features can be selected separately from one another; you can use some, all, or none of them.
Universal Language
7th-level barbarian feature
Anger transcends the spoken word. Any creature that can understand a language can understand what you say when you make threats of violence.
Druidic
1st-level druid feature, which modifies the Druidic feature
You know the druidcraft cantrip, which doesn't count against your number of cantrips known, and you know Druidic, the secret language of druids. You can speak the language and use it to leave hidden messages. You and others who know this language automatically spot such a message. Others spot the message’s presence with a successful DC 15 Wisdom (Perception) check but can’t decipher it without magic.
When you cast a druid spell with a verbal component, you can choose to speak the component in Druidic. When you do so, you can create a magical effect, as if by the druidcraft spell as a part of the spell's casting.
Remarkable Finesse
11th-level rogue feature
Your movements become effortless, extending your natural finesse to the most brutal of objects. While you are wielding a melee weapon with which you are proficient, it gains the finesse property if it doesn't have it already.

