Dragon Rider

Starting at 6th level: When you get a Young Wyvern (Dragon). 

You are a dangerous foe to face while on your dragon. While you are on your dragon and aren't incapacitated, you gain the following benefits:

• You have advantage on melee attack rolls against any unmounted creature that is smaller than your mount.
• You can force an attack targeted at your mount to target you instead.
• If your dragon is subjected to an effect that allows it to make a Dexterity saving throw to take only half damage, it instead takes no damage if it succeeds on the saving throw, and only half damage if it fails.
• You are now proficient in Draconic.
•  You can telepathically communicate with the Dragon. (Range 500 Ft.) 

If you get your dragon before level 6 then you have not learned the skill to ride until level 6. 

Starting at 12th level: Your Dragon grows to a full size Dragon (Wyvern). 

Starting at 16th level: You have discovered your goal and way as a Dragon Rider. You gain the Dragon Rider Mark of Healing, you gain the Healing Word spell which you can cast at will twice a day. Or you can chose the Dragon Rider Mark of Power, you gain a +1 to any stat you would chose.