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Cover: Ron Frenz & Bob McLeod
Thundercats #20
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In "Excalibur!", Mumm-Ra, masquerading as King Arthur, attempts to claim the legendary sword Excalibur to rival the Thundercats' Sword of Omens. Disguised and wielding dark magic, he confronts Lion-O—only to be undone by the ancient wisdom of Merlin the Magician. Written by Daryl Edelman and Ernie Colón, with inks by Al Williamson and colors by Petra Scotese, this 1988 Marvel issue features a striking cover by Ron Frenz and Bob McLeod.
writer Daryl Edelman · artist Ernie Colón · inker Al Williamson · colorist Petra Scotese · letterer Rick Parker · writer Peter Lawrence · cover Ron Frenz, Bob McLeod
ComicBooks.com Value
Our Model is In Beta
Raw (VF) $4
CGC 9.8 · 20 in census $68*
CGC 9.6 · 14 in census $31*
CGC 9.4 · 6 in census $30*
CGC 9.2 · 5 in census $30*
CGC 9.0 · 2 in census $30*
CGC 8.5 none in existence
Show all 11 grades ▾
CGC 8.0 none in existence
CGC 7.5 · 1 in census $30*
CGC 7.0 none in existence
CGC 6.5 none in existence
CGC 6.0 · 1 in census $30*
* estimate — limited direct-sales data at this grade
Our model’s value — refined as new sales data arrives · CGC census counts shown where available
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Cast · 2 characters
Full credits
writer Daryl Edelman
artist Ernie Colón
inker Al Williamson
colorist Petra Scotese
letterer Rick Parker
writer Peter Lawrence
cover pencils Ron Frenz
cover inks Bob McLeod
Reprints
Reprinted in ThunderCats #53, ThunderCats #54
Key issues in Thundercats
Variants (1)
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