X Factor: Another thing in MvC3 is the X-Factor, which can be utilized a number of ways. It can be offensive, defensive, or just stylish, it's all up to the user. By pressing ABC and E at the same time, you go into "X-Factor" mode. This speeds up movement, regenerates red health, and raises your attack power. These multipliers are dependent on how much life your
team as a whole as when you activate it. It's sort of meant to be a game changer of sorts to help you turn the tide. On the other hand, you can use it to cancel your moves.
For example, you could use Magneto's level 1 hyper combo Magnetic Shockwave, cancel it immediately with the X-Factor, then do the level 1 hyper immediately once more for double damage. The only thing to remember is that X-Factor can only be activated once per match, so use it wisely.
Advancing Guard: All Versus games have this, but it's a little beefier in MvC3. By pressing ABC at the same time while you're blocking a barrage of attacks, your character will force your opponent back some. This helps if you're trying to gain a little space because you are SO PRINGLES.
Tagging and Assists: Tagging and Assists are assigned to the same button in MvC3. Tapping it will bring out an assist and holding it will tag that character in. MvC3 has sought to end assist spamming, so it's important to know if you're character gets caught tagging in or assisting, the damage doesn't scale on them. This means if a 20 hit combo does 10 points of damage for the first five hits then diminishes every hit afterwards on a normal character, a character being tagged in will take a theoretical 200 points of damage since it won't scale. There are two neat ways to bring your characters in safely though.
DHC: The Delayed Hyper Combo isn't anything new but it's useful. If you unleash a hyper combo with your current character and wish to tag the next one in, simply input the command for their hyper combo before your point character's finishes. This will cut the first HC short and bring in your next character safely all while giving you an opportunity to make a big combo.
Air Tagging: The new way in MvC3 is the team aerial combo system. By using the launcher button to knock someone into the air, you can then start an aerial combo. At the conclusion of this, you have 3 options. You can:
A) let the combo lapse and let your opponent fall harmlessly to the ground
B) Hit the launcher button neutrally to smack your opponent back down and get a bounce.
C) Or you can press the launcher button and a DIRECTION to start a team aerial combo.
If you choose option C, the screen will flash for a split second before your teammate can tag in. This is your opponent's time to "guess" your input and escape the combo.
For example, if I had Jay in an aerial combo and I tried to tag Chun-Li in using E+Right, if Jay presses E+Right during that window, he will knock me to the ground and end the combo. If he guesses wrong, I'll have a chance to tag someone in and extend said combo until I've cycled through all my players.
Ok that's all the stuff I know from skimming websites and such.
