Investment of the Taskmaster

When you cast find familiar, you infuse the summoned familiar with a measure of your eldritch power, granting the creature the following benefits:

The familiar gains a +10 to all movement speeds

As a bonus action, you can command the familiar to take the Attack action.

The familiar can become  large size as a bonus action and it's damage becomes 2d8+ spell casting bonus. It also gains 2x your level in temporary hit points. 2 uses per long rest

As a bonus action you can enrage your familiar to cause +2d8 extra damage for one round. 3 uses per Short rest the attack command is implied with this 

When the familiar takes damage, you can use your reaction to take half the damage yourself.