Abel was about to draw the "12# SOL Thor" rune on to the shields. It stated that it could absorb impacts. Not only that, But Abel had discovered its ability to absorb impact was greater than the game had suggested.
It took another day until Abel could finish drawing the runes, and installing diamonds on to all 20 of these shields.
When he threw the shield into the Horadric cube, these statistics appeared:
Absorption round shield (normal)
Defense: 5
Durability: 12/12
Absorb physical impact -3
Although the blue font suggested that this was a magic shield, it could not fully unleash the power of the rune and achieve the ultimate "absorb physical impact 7".