Due to your mixed heritage, you receive a bonus to your Dexterity, Constitution and Charisma scores. The elven people are agile by nature and the dwarves, hardy. You have spent your life explaining the nature of your appearance. 

Dwelfs lean more towards their dwarven nature in aging. When raised by their dwarven parent, their childhood is relatively close to what they expect in raising a child. On the other hand, when raised by an elven parent, they mature much more quickly than an elven child would and often doesn’t fit in elven society   With others of their age. Additionally, the elven parent nearly always outlives their child by a few hundred years.

Dwelves, like their parents are not hugely influenced by society and often take on a neutral nature.

The combination of these bloodlines have lead to what amounts to a short, hardy elf. Small in size with lean powerful muscle.

Due to their size and powerful legs, dwelves can carry a large amounts of weight but not very quickly. Dwelves count as one size bigger in carry weight.

Your fey ancestors are magic creatures that are not easily charmed or put to sleep.

Thanks to your elf and dwarf blood, you have superior vision in dark and dim conditions. You can see in dim light within 60 feet of you as if it were bright light, and in darkness as if it were dim light. You can’t discern color in darkness, only shades of gray.

you come from two hard working and skilled bloodlines. You gain proficiency in two skills of your choice.

You have advantage on saving throws against poison, and you have resistance against poison damage (explained in the “Combat” section).

You gain proficiency with the artisan’s tools of your choice: smith’s tools, brewer’s supplies, or mason’s tools.

You can speak, read, and write Common, Elvish, Silvan and Dwarvish. Dwarvish is full of hard consonants and guttural sounds, and those characteristics spill over into whatever other language a dwarf might speak. Elvish and Silvan are both beautiful and soft languages.