Satan may very well use peoples superstition to keep them locked in unbelief but there is no biblical reason to believe that he can create things. As for Mermaids & Bigfoot they are both fairy tails spawned by run away superstition or childish pranks much like UFO's
This is not true at all. Satan (and his workers) can perform real miracles.
Exo 7:11 Then Pharaoh also called the wise men and the sorcerers: now the magicians of Egypt, they also did in like manner with their enchantments.
12 For they cast down every man his rod, and they became serpents: but Aaron's rod swallowed up their rods.
Now, this may have simply been a well performed magic trick, but some of their magic seems to have been real.
Exo 8:6 And Aaron stretched out his hand over the waters of Egypt; and the frogs came up, and covered the land of Egypt.
7 And the magicians did so with their enchantments, and brought up frogs upon the land of Egypt.
This would be far more difficult. Scripture says that the magicians also brought up frogs upon the land of Egypt. Pharaoh would not be deceived by a few frogs, that is an obvious trick, but if these frogs covered the land as Aaron's did, that would be very convincing.
But here is why I believe these were real miracles, and not simply magic tricks;
Exo 8:18 And the magicians did so with their enchantments to bring forth lice, but they could not: so there were lice upon man, and upon beast.
19 Then the magicians said unto Pharaoh, This is the finger of God: and Pharaoh's heart was hardened, and he hearkened not unto them; as the LORD had said.
This is a remarkable passage here, Pharaoh's magicians attempted to bring forth lice but could not. They even told Pharaoh that this was God's work. Now, if these were simple magic tricks, why would these magicians attempt to perform a trick they were not able to do? Why would they be shocked when they could not imitate the miracle performed by Aaron?
So, I believe these magicians were performing real miracles, though they could not perform all the miracles Moses and Aaron performed.
There is also scripture showing that Satan can rain fire down from heaven, and gave "life" to the image of the beast.
Rev 13:11 And I beheld another beast coming up out of the earth; and he had two horns like a lamb, and he spake as a dragon.
12 And he exerciseth all
the power of the first beast before him, and causeth the earth and them which dwell therein to worship the first beast, whose deadly wound was healed.
13 And he doeth great wonders, so that
he maketh fire come down from heaven on the earth in the sight of men,
14 And deceiveth them that dwell on the earth
by the means of those miracles which he had power to do in the sight of the beast; saying to them that dwell on the earth, that they should make an image to the beast, which had the wound by a sword, and did live.
15 And
he had power to give life unto the image of the beast, that the image of the beast should both speak, and cause that as many as would not worship the image of the beast should be killed.
Satan has real power, he will cause fire to rain down from heaven, just as he did in the book of Job. He also caused a great wind that collapsed the house of Job's eldest son killing all of Job's children. (Job 1:16,19)
Satan also smote Job with boils. So Satan has real power and can perform real miracles, the scriptures themselves say so.
Satan is not some servant of God as some have said here in the past, he is God's enemy and adversary and has real power. In Revelation 12:7 we see there will be war in heaven, God is not fighting against himself.
