In Revelation 5:6, what did John see standing in the center of the throne, appearing to have been slain?

Answer: A Lamb

John saw a Lamb who appeared to have been slain, standing in the center of the throne, with seven horns and seven eyes.

“Then I saw a Lamb who appeared to have been slain, standing in the center of the throne, encircled by the four living creatures and the elders. The Lamb had seven horns and seven eyes, which represent the seven spirits of God sent out into all the earth.”— Revelation 5:6 (BSB)