head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is reads, and it is a single point.

Reads · Grand Arena
A tag-team anime fighter where team composition synergy and tag-in reads define competitive matches.

Execution · Grand Arena
A variation-based fighter where character specialisation choices and read-and-punish execution drive competitive outcomes.
BlazBlue: Cross Tag Battle leans Reads (Grand Arena); Mortal Kombat X leans Execution (Grand Arena).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
BlazBlue: Cross Tag Battle
Cross Combo and tag setups require practiced execution
Mortal Kombat X
Variation-specific combo routes demand precise practice
BlazBlue: Cross Tag Battle leans a little harder on reads, though the gap is small.
BlazBlue: Cross Tag Battle
Tag-in timing and team-based opponent modelling add adaptive layers
Mortal Kombat X
Reading opponent's variation choice and tendency shifts the matchup
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
BlazBlue: Cross Tag Battle
No RNG; all mechanics are transparent
Mortal Kombat X
No RNG; transparent match flow
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
BlazBlue: Cross Tag Battle
Team synergy optimisation and assist routes reward systematic play
Mortal Kombat X
Variation selection and optimal punish routes require systematic study
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.