Digimon from the Xros Wars era don't have levels, so comparing their power to any leveled Digimon is wrong by default.
And even if he had a level it would still be difficult to measure his power because he was barely shown doing any fighting. From what we could see from him he is not very impressive, what is not surprising considering he is not a fully matured Digimon from Xros Wars standards, just a kid.
Digimon ended in 2010.
Mega Level
They are Mega level Digimon.
That is for you to decide. For me, I have Dusk, but I like basically any Digimon that can learn Royal Slash. But MY favorite is Beelzemon Blast Mode. So you are the judge! YOU choose the Digimon YOU like best! That is for you to decide. For me, I have Dawn, but basically any digimon can be powerful from the way you train it because it can be as powerful as a rookie or even as a mega level its only what attackes you think that's best to stick on them. My Favourite is Seraphimon because he has learn Sacred 7 Dragonball that's his best attack ive made it learn yet
Digimon evolve to a Lv1 version of the next evolution stage.
Digimon ended in 2010.
Mega Level
They are Mega level Digimon.
You must fight to get your digimon to go up levels.
That is for you to decide. For me, I have Dusk, but I like basically any Digimon that can learn Royal Slash. But MY favorite is Beelzemon Blast Mode. So you are the judge! YOU choose the Digimon YOU like best! That is for you to decide. For me, I have Dawn, but basically any digimon can be powerful from the way you train it because it can be as powerful as a rookie or even as a mega level its only what attackes you think that's best to stick on them. My Favourite is Seraphimon because he has learn Sacred 7 Dragonball that's his best attack ive made it learn yet
Digimon evolve to a Lv1 version of the next evolution stage.
you must DNA Digivole your Greymon with another Digimon at level 11 (Champion)
It is called Digimon Frontier although in Digimon Tamers the children will biomerge with their partner so that the partner can reach their mega level.
you need a digimon dat is higher dan 10 level mean you need a digimon dat is in Rookie State. but you can only capture in-trainin state digimon well i hope it helpyou
I can't think of any mega level armour digimon. They are usually considered to be champion equivalents, though some, like Magnamon, are equivalent to an ultimate.
9999
At the moment (as of December 10, 2015) the ultimate level form of Digitamamon cannot digivolve or mega digivolve to any mega-level Digimon called HolyDigitamamon the only mega-level Digimon that Digitamamon can digivolve into are Titamon which is known as a "One-Man Digimon" and has the Virus attribute and Digitamamon can also digivolve to Devitamon which is a Mega-level Digimon, has the Mutant type and has the Data attribute.