"Attack of the 50-Foot Shaggy!"
"Frankly? Freaky!"
*It's the biggest Shaggy story ever! When an enlarging ray accidentally hits Shaggy, Scooby and the gang have to find a way to reverse the effects! *Source: dccomics.com
"Attack of the 50-Foot Shaggy!" is reprinted in Scooby-Doo, Where Are You? (2010) #49.