Corruption

You touch the ground beneath your feet to imbue it with necrotic energy. This energy glows with a dim green light in a 10 foot radius. As a bonus action on your turn, you can cause the energy to travel through the ground centered on a place you can see within 30 feet of you.

Any creature other than yourself within a 10 foot radius of the point you choose must succeed on an Wisdom saving throw or suffer -2 to attack rolls and armor class. 

At higher levels: the distance you can move the corruption increases by an additional 5 feet and the attack and armor class penalty increases by 1.

Distance: 5th level (35 feet, -3 to attack and armor class), 11th level (40 feet, -4 to attack and armor class), 17th level (45 feet, -5 to attack and armor class)