Answer:

- they can take on different forms (shapeshift}, appear solid or
transparent, appear and dematerialize or be invisible.
- they can manipulate matter and energy to create  such things as
crop-circles, ufos, mysterious lights, orbs, etc.
- they can affect electrical devices and batteries and cause them to
malfunction.
- Some of these entities can harm, abduct  or sicken and kill humans
and animals,
- they are masters of deception and lies
- they can create false religions and cults.
- they can move and levitate objects, people and animals,
- They are scared of God and Jesus.
- they hate the metal iron because it reminds them of the future
judgement and fate in the lake of fire which contains molten metal
iron.
- they are involved with paranormal phenomena, real magic and can
deceive mystics and people
that are involved with the occult or spiritism, animism, or the worship

of false gods and idols.
- they can possess people and drive them insane or use them as
channelers and mediums.
- they can create lying signs and wonders
- they can disguise themselves as beings or angels of light or can
manifest in hideous forms.
- they can destroy people's faith in God and create apostasy.
- they can seduce people to follow them into hell and ruin