Tyrant Shard is an object dropped by Korlok Tyrant-Weeds when defeated. It is a heavy object and must be picked up and carried by hand, or via Bosco. When carrying it a dwarf cannot do anything but throw flares / throwables, ride ziplines, and move with a 25% speed penalty (Sprinting is also disabled). It can be dropped by switching weapons or using the Laser Pointer, it can also be thrown far away by holding the [FIRE] key ("Left Mouse Click" by default) before releasing it.
The Tyrant Shard is a large resource resembling the core of a Korlok Tyrant-Weed with glowing white spikes stemming from a glowing green base.