It means that when you get Expertise from different classes, the number of skills on which you apply Expertise stacks. But Expertise can be applied only once on the same skill. You can get Expertise more than once, but you can never double your proficiency bonus on a roll more than once, as explained in the rules.
Can I take the skilled feat twice?
By rule from the PHB: You can take each feat only once, unless the feat’s description says otherwise. You would need to homebrew feats to achieve what you are trying to do.
What happens if I get the same skill from both my backgrounds?
If a character would gain the same proficiency from two different sources, he or she can choose a different proficiency of the same kind (skill or tool) instead. ( PBR, p. 36; PHB, p. 126) Each background gives a character proficiency in two skills. Skills are described in chapter 7.
What do you need to know about additive manufacturing?
Additive manufacturing, also known as 3D printing, is a process that creates a physical object from a digital design. Learn more about the process of additive manufacturing in this short video. If playback doesn’t begin shortly, try restarting your device.
How many skills does a background give a character?
Each background gives a character proficiency in two skills. Skills are described in chapter 7. In addition, most backgrounds give a character proficiency with one or more tools. Tools and tool proficiencies are detailed in chapter 5.
What makes an additive a biodegradable material?
2. Additives with Organic Materials: In this class of materials, some portion of the additive itself will biodegrade and generate carbon dioxide or methane. The biodegradable portion of the additive pellets can be natural materials, such as cellulose and starch or it can consist of resins, which are known to biodegrade, such as EVA or PVOH.
