Your STR score increases by 2 (From your wolf side), your DEX is increased by 2 (From there wolf side) and your CHA score increases by 1.

Young Dragon-Wolfs grow quickly. They walk hours after being born, and they finished maturing and reach max height at around 15 instead of 18 for humans, but they live longer then humans, around 150 is average age of a Dragon-Wolfs death, they are elderly at around 125

Dragon-Wolfs tend to extremes, you get ones that are very smart and wise, being wizards, very good ones who would never do anything bad, even if that were stealing a spoon, you get bad ones who will kill for fun, and you get neutral ones who will sit and sip tea for as long as they live not disturbing anyone, they can be in-between the spectrum but mainly its all or northing 

Dragon wings, wolf tail and ears and dragon claws dragon scales along their body, A line of dragon scales down their spine, and fangs a bit like a vampire, These are the looks of a Dragon-Wolf, There wings are 4 and a half feet, there cupids (upper and lower) are longer, around 1 quarter of a feet longer then normal,  they have long dragon claws, what can be retracted and extended like a cats claws,  they have long dragon spines along there back, 1 quarter long, and they go from the bottom of the neck to the tailbone, what is where there wolf like tail is,  it is as long as there wings, they are very fluffy and the full ends around the lower back where the tail meets the skin,  they also have wolf ears, they also have dragonborn ears but these are just decoys, they overall have a complex design, there anatomy is also weird, and how a dragon born and wolf bread successfully is also strange, no one knows how a viable offspring was produced, but here we are with Dragon-Wolfs  

Your base walking speed is 30 feet. your base flying speed is 20 feet

You have draconic ancestry. Choose one type of dragon from the Draconic Ancestry table. Your breath weapon and damage resistance are determined by the dragon type, as shown in the table.

Draconic Ancestry

The Dragon-Wolf has 2 ancestors from there draconic side, The Silver dragon and the White dragon, both are know for there Silver and White colour and for being in cold regions, they have Ice breath weapons,  you will have to roll a 1d6 of ice/frost damage, and every 2nd level you add another d6, so at lv 3 you have 2d6's, and by lv 19 you will have 9d6's a breath weapon, but at lv 20 you will get 1 more d6 so at lv 20 you will have 10d6's of damage every time you use a breath weapon, but it uses a spell slot

You have resistance to the damage type associated with your draconic ancestry.

You can speak, read, and write Common, Draconic and Wolf. Draconic is thought to be one of the oldest languages and is often used in the study of magic. The language sounds harsh to most other creatures and includes numerous hard consonants and sibilants. and Wolf is the language that all wolfs use