How strong is a Unicorn -Numbers 24 v8?

The unicorn referred to in Numbers 24:8 and also in Numbers 23:22, Job39:9 and Psalm 92:10 is the extinct aurochs or wild ox. This was indeed a fierce animal which once inhabited the region where The Bible was written.

8God brought him forth out of Egypt; he hath as it were the strength of an unicorn: he shall eat up the nations his enemies, and shall break their bones, and pierce them through with his arrows. Apparently this beast was quite a large animal and the figurative language describes in poetic form some of his attributes, not of course in a scientific manner, but nevertheless apt.