As with all other Digimon, each of the new Digimon has seven stages of evolution: Digiegg, Baby, In-Training, Rookie, Champion, Ultimate, and the new Mega stage. This does not mean though, that they just have seven different forms (example, Skullgreymon). So here are the stages for my new Digimon, and their attacks in each stage. They will be listed by their Digi-destined partner. I know that these are not the most original names ever thought up, but they are the best that I could do.
Tai
Baby: Minimon
In-Training: Scalmon/Attack: Bubble Blow
Rookie: Pyromon/Attack: Fire Breath
Champion: Dragimon/Attack: Lava Flame
Ultimate: UltraDragimon/Attack: Mega Fire, Tail Slash, Fire Claw
Mega: Magmadragimon/Attack: Cosmic Fire
Sora
Baby: Sawmon
In-Training: Puffmon/Attack: Bubble Blow
Rookie: Purrmon/Attack: Tail Slash
Champion: Tigramon/Attack: Blue Fire
Ultimate: Sabertoothedtigramon/Attack: Fire Stripes, Energy Ray
Mega: Bengaltigramon/Attack: White Stripes
Joe
Baby: Skimon
In-Training: Newmon/Attack: Bubble Blow
Rookie: Leathermon/Attack: Tail Whip
Champion: Alimon/Attack: Laser Disks
Ultimate: Cyberalimon/Attack: Cyber Cannon (various attacks can be done with the Cyber Cannon)
Mega: Lizardmon/Attack: Rocket Cannon
Matt
Baby: Penmon
In-Training: Pupmon/Attack: Bubble Blow
Rookie: Noblemon/Attack: Laser Horns
Champion: Griffimon/Attack: Feather Launcher
Ultimate: Knightmon/Attack: Laser Sword Slash, Shield Protector
Mega: Warriormon/Attack: Blazing Spears
Mimi
Baby: Sighmon
In-Training: Sproutmon/Attack: Bubble Blow
Rookie: Ivymon/Attack: Pollen Spray
Champion: Rosemon/Attack: Leaf Blade
Ultimate: Thornedrosemon/Attack: Thorn Missiles, Root Whip
Mega: Colossalrosemon/Attack: Pedal Pulverizes
Izzy
Baby: Tanmon
-In-Training: Hoofmon/Attack: Bubble Blow
Rookie: Torusmon/Attack: Super Charge
Champion: Toromon/Attack: Hyper Charge
Ultimate: Minitarmon/Attack: Atomic Horns, Lightning Club
Mega: Titanminitarmon/Attack: Titan’s Blast