What wondrous things has Casca seen at the end of scene ii?

Answer 1

The weather is terrible. He sees a man with his hands on fire, but his flesh was not burning. He sees a lion at the capital. Many people are walking around on fire and an owl is seen during the day.

Answer 2

At the end of Act II, scene ii, Casca describes witnessing several strange and supernatural phenomena. He saw a lion wandering the streets of Rome, slaves on fire but unaffected by the flames, an owl hooting during the day, and men walking the streets with their hands on fire but not being burned. These bizarre sights are seen as omens and portents of the chaos and upheaval that is to come.