Crusher
Source: Player's Handbook
Prerequisite: Level 4+
You gain the following benefits.
Ability Score Increase. Increase your Strength or Constitution score by 1, to a maximum of 20.
Push. Once per turn, when you hit a creature with an attack that deals Bludgeoning damage, you can move it 5 feet to an unoccupied space if the target is no more than one size larger than you.
Enhanced Critical. When you score a Critical Hit that deals Bludgeoning damage to a creature, attack rolls against that creature have Advantage until the start of your next turn.