This new game is intended to be more easily accessible to new players.
Details on the gameplay aspects of the freshly-revealed Marvel vs. Capcom Infinite are gradually starting to appear over the course of the weekend. We learned early on that the game would feature 2-on-2 teams instead of the 3-on-3 from the last two titles; Capcom Director of Production Mike Evans has spoken to Game Informer on this matter, and added that no assist characters will be joining your duo this time around. Instead, you choose two fighters and one Infinity Stone. The decision to streamline the character select process was made, apparently, to be less intimidating than prior games’ character/assist selection process, and appeal more readily to casual fans–but also to offer the Stone as an assist-substitute, preventing certain characters becoming more like “tools” by being selected solely for what they offer as an assist ability, as the design team has reportedly observed in prior titles.
The Infinity Stone replaces the X-factor mechanic from Marvel vs. Capcom 3, and the Stones will provide multiple buffs to your team throughout the match–but the exact means of activation and limitations are yet unclear. Experienced players balking at the words “casual” and “accessible” shouldn’t have to worry, though–efforts are being made to keep more advanced gameplay in the mix, particularly through the new ability to instantly switch your fighters at any time, including mid-combo, similar to MvC3’s team aerial combos–but more quickly–and on the ground as well. This mechanic should allow for a sort of “freeform” combo system–at least, that is the design goal.
Marvel Entertainment’s Creative Director Bill Roseman also spoke to Game Informer regarding the concerns that X-Men were off-limits due to licensing issues; he reassured that X-Men are not off the table outright–“That heritage is not lost,” according to Roseman.
Source: Game Informer