Meramon

Meramon is a champion level Digimon whose body is completely made up of fire. He's a Data Digimon who has a flame attribute.

Nintendo Games
Meramon is a champion level who can digivolve to Mamemon and digivolves from both rookie Digimon Agumon and Betamon. To Digivolve from Agumon the player must make 4 or more care mistakes, train 16 or more times, overfeed 3 or more times and have zero through six sleep disturbances. To Digivolve from Betamon the owner must have zero through three calls and train zero through 48 times. He's the thrid strongest champion behind Airdramon (who's the strongest) and Greymon (who's the second strongest).