|Description||If the entity is wither_skull, sets whether the skull is charged. Charged skulls are blue.
If the entity is a vex, sets whether the vex is charging. Charging vexes have red lines.
This is a visual effect, and does not cause the vex to actually charge at anyone.
If the entity is a guardian, sets whether the guardian's laser is active.
Note that guardians require a target to use their laser, see attack.