There are 18 Monster Flyball trading cards tracked on HobbyCardIndex, spanning Baseball. The most valuable is the Monster Flyball #55 at $3.99 raw.
Source: HobbyCardIndex · Updated daily · https://hobbycardindex.com/players/monster-flyballMonster Flyball Cards
18 cards · Baseball
All Monster Flyball Cards
Monster Flyball #55
$3.99
Monster Flyball #67
$1.50
Monster Flyball #65
$1.50
Monster Flyball #71
$1.45
Monster Flyball #68
$0.25
Monster Flyball #72
$0.25
Monster flyball #61
$0.25
Monster Flyball #56
$0.25
Monster Flyball #60
$0.25
Monster Flyball #62
$0.25
Monster Flyball #64
$0.25
Monster Flyball #70
$0.25
Monster Flyball #57
$0.25
Monster Flyball #59
$0.25
Monster Flyball #63
$0.25
Monster Flyball #66
$0.25
Monster Flyball #69
$0.25
Monster Flyball #58
$0.25