As a bonus action Blink Dogs can teleport, along with any equipment they´re wearing or carrying, 12m (40´) to an unoccupied space they can see. The teleport has charges of which the number is dependent upon level. The charges are fully restored on long rest, while a short rest will restore a single charge.

Lvl 1: 2 charges

Lvl 2: 3 charges

Lvl 5: 4 charges

A Blink Dog can hold single hand Items that aren´t heavy or two-handed in his jaw and use them to attack or cast spells, as if he had a single free hand. Even when holding an item this way, a Blink Dog still manages to use verbal components to a spell. His able jaw enables a Blink Dog to write.

Blink Dogs have advantage on Wisdom (Perception) checks that rely on hearing or smell. They can roll Wisdom (Perception) checks instead of Wisdom (Survival) to find and follow scent tracks.

Blink Dogs can easily wear collars, scarfs, amulets, belts, bracers and cloaks without problems. Armor, rings, hats, tiaras, boots, gloves or other similar humanoid equipment can only be worn when it´s either magical or reworked to fit. Blink Dogs can never use shields.

Melee Weapon Attack: Proficiency bonus + Strength to hit, reach 5ft., one target. Hit: 1d6 + strength piercing dmg. Awakened Blink Dogs can do this attack only if they´re not holding an object in their jaw.

Due to a lack of thumbs, awakened blink dogs rolls with disadvantage on dexterity checks or throws that would normally involve the dextrous use of hands and thumbs. 

Awakened Blink Dogs have proficiency in persuasion.