I love the fact that the Egyptian magicians think it is clever to copy the first few plagues. (They run out of steam when it gets to the gnats).
The Egyptians "grow weary of drinking water from the Nile" (7:18 - !), because it is turned to blood. So the Egyptians produce... more blood.
Pharaoh is pleading (not very dignified for a king of Egypt, 8:8) with Moses and Aaron to take away the frogs. But that's alright - his magicians can produce... more frogs.
I mean: What use is more blood and more frogs?! The one thing they cannot copy is Yahweh's ability to take away the plagues. Thus it's clear, even from plague 1, that Yahweh is without rival in Egypt.
There are many temporal expressions of God's anger in today's world. The false gods we all serve to varying degree can replicate many of these expressions of anger. But there is no god in the world, except the Father of the Lord Jesus Christ, who can take away the anger of God.