Lion-Dragon Metaphor

You consider yourself a lion of the nations, but you are like a dragon in the seas.
Scholars stumble over that verse, because a lion and a sea dragon seem like two quite different things. Heiser does not split them. The two images combine into a single figure - the standard ancient Near Eastern picture of maximum chaotic power.
And it continues what chapter 29 began. This belongs to the Leviathan complex of ideas, the great chaos monster, applied to Egypt from one end of these oracles to the other.
Scripture links:
- Ezekiel 32:2 - you are like a dragon in the seas.
- Ezekiel 29:3 - Pharaoh as the great dragon in his streams.
The mixed metaphor is not a mistake. It is the point - a beast made of every threat at once.