Help with evolution!

Level 3
May 10, 2012
So, I'm creating a Digimon map. Well, the characters you choose are rookies(Agumon, Veemon, Gabumon, Patamon). I been thinking about how to evolve them into champion, ultimate, mega. But I can't seem to figure out a way to create an evolve system. I'm still a starter on creating maps.

How would the triggers be like? Can someone help? Thanks.
Level 20
Jul 14, 2011
Omg... It would be nice to have a good evolve system.

As the other said, trigger it. It's easier. It depends a bit on the way you want them to evolve.. Based on kills, experience, life, abilities used, distance traveled, timelife, or all of them together.... Do the abilities of the First Unit remains in the second with the same levels, or the other unit has different abilities?, etc... Think about the whole package and let us know so we can give you more precise advices.