FC 27 launches globally on consoles on September 25, while PC players can start playing on September 24 at 23:00 UTC.
Planning for Ultimate Team's starter squads is entering its final stages. Beyond ratings, pace, and PlayStyles, the new season's chemistry adjustments will also influence starting lineup choices - particularly for players accustomed to building hybrid squads using Heroes and ICONs.
In its launch update, EA confirmed that FC 27 will reduce some of the chemistry contributions that ICONs and Heroes provide to their teammates. While these may seem like minor numerical tweaks, they will directly affect common hybrid squad-building strategies.

Chemistry Changes
ICONs still automatically receive full chemistry when played in their correct positions and continue to provide a +1 contribution to all leagues; however, their nation contribution has been reduced from +2 to +1.
Heroes also automatically receive full chemistry in the correct position and maintain a +1 nation contribution, but their league contribution has dropped from +2 to +1. The new Hall of FUT players introduced in FC 27 follow chemistry rules similar to those of Heroes.
EA also plans to reduce the frequency of boosted chemistry on other special items. While some future campaign items may still receive extra chemistry, the specific cards have not yet been revealed.

Hero Nerf
One of the greatest advantages of using Heroes in squad building was their ability to boost the chemistry of teammates from the same league, thanks to their higher league contribution.
With FC 27 reducing this bonus from +2 to +1, Heroes themselves can still easily reach full chemistry, but their ability to assist teammates is significantly diminished. Squads that previously just managed to cross a chemistry threshold may now fall short by a single contribution point.
This change is particularly noticeable in hybrid squads. Previously, if a lineup had only a few Premier League players, adding a single Premier League Hero might have been sufficient; now, you might need to add another Premier League player or bridge the gap using manager, nation, and club links.
Consequently, when selecting Heroes in FC 27, it is more important than ever to focus on the card's individual strength.
Hero cards with excellent pace, PlayStyles, positional versatility, and in-game performance remain worth using; however, if you are spending a large amount of FIFA 27 coins solely for Chemistry, the value proposition needs to be reconsidered.
ICON Chemistry
Nation contribution provided by ICONs has also dropped from +2 to +1, making it harder than before to use them to boost Chemistry for players from the same nation.
This change most significantly affects players from less popular leagues. Previously, players could quickly gain Nation Chemistry by linking with an ICON from the same country; in FC 27, additional connections are often required.
Especially during the early game when FC 27 coins are scarce, constantly swapping players across multiple positions just to fix Chemistry can easily drive up the total cost of the squad.
However, since ICONs still provide a +1 contribution to all leagues, they remain flexible options for multi-league squads. Unlike Heroes, which tend to favor specific leagues, ICONs are still great for linking different leagues - even if the impact of Nation link has diminished.
Hybrid Squad Impact
Single-league squads are relatively less affected. If your starting XI is already concentrated within the same league, club, or nation, a reduction in contribution can usually be compensated for by other connections.
The pressure is more noticeable for hybrid squads.
Multi-league squads require allocating limited roster spots to different leagues. Previously, Heroes and ICONs helped minimize the number of players needed to satisfy Chemistry requirements, freeing up slots for high-performance cards; with FC 27's reduced contributions, that flexibility is curtailed.
This could also affect the transfer market during the early game. Gold cards with links to popular leagues, nations, or clubs will play a larger role in assembling Chemistry. When stats are comparable, players who help solve squad connection issues often offer greater practical value.
Chemistry Tips
During the early game, you can build the core of your squad around a single league and then fill a few key positions with players from other leagues. This way, even with reduced Hero contributions, swapping out a single card is less likely to disrupt your entire Chemistry setup.
Club links will also become more practical. Players from the same club can often satisfy multiple connection requirements simultaneously, offering a more stable solution for squads that are just shy of the necessary contribution thresholds, compared to constantly relying on special cards to fill gaps.
Heroes are best utilized as powerful starters that provide Chemistry as a bonus, rather than being acquired at a high cost in FUT coins solely to serve as connection tools.
ICONs still work well in multi-league setups, but if you are relying on one to help a specific nation, check how much Chemistry support the rest of your squad and manager can already provide before locking in the lineup.
This prevents the scenario where, after assembling the squad, you discover a key player is one level short of full chemistry.
Boosted Chemistry Cards
EA has indicated that it will be more cautious about granting boosted chemistry to Campaign Items and other special items in FC 27. As the chemistry contributions of standard Hero and ICON cards have been reduced, sources of extra chemistry will become scarcer overall.
If future campaign cards receive superior chemistry bonuses - whether for leagues, nations, or other categories - their value for squad building could significantly surpass that of standard special cards, as they would reduce the squad's reliance on additional connections.
However, while EA has confirmed it will curb the proliferation of boosted chemistry, it remains unclear exactly which event cards will receive these enhancements. Consequently, squad planning during the early game phase should still prioritize the existing chemistry rules.
Hero and ICON cards will continue to be vital assets in Ultimate Team, even though their efficiency in boosting teammates' chemistry has declined.
For players who enjoy building hybrid squads, FC 27 will place greater emphasis on balancing leagues, nations, and clubs; during the early game, there will be little room to waste any spot in the starting lineup.











