Spike Grenade

From MLGWiki

The spike grenade is similar to a plasma grenade in that it can stick to players and vehicles, but it will also sticks to any surface on which it is thrown. After it sticks to a surface, it explodes a conical blast of spikes in the direction it was facing. These spikes will ricochet several times if in a confined space.

It is among the heavier grenades and has a steep arch, making it a good bunker buster grenade with it's natural explosion.