Grover's Crippling Axe could be worked to get stuck into terrain and surfaces to then act as a 3s deployables.

Enemies within range of the impact near by would be ensnared by vines and slowed 25% for as long as they are within range or the deployable is alive.

This would add a tad more utility to grovers kit to allow his crippling axes to be more worth while at long range, at high ground advantage and be an interesting back walling and environment punishing aspect for grover to utilise.