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 · Mind & Math
Real-time card battles testing deck building and predicting a live opponent's plays.

Optimization · Mind & Math
Console-first RTS translating Halo's factions into streamlined base-and-army battles.
Epiko Regal leans Reads (Mind & Math); Halo Wars leans Optimization (Mind & Math).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Epiko Regal
Card placement timing matters more than dexterity
Halo Wars
Controller macro is deliberately light
Epiko Regal leans a little harder on reads, though the gap is small.
Epiko Regal
Live PvP rewards predicting opponents' deployments and counters
Halo Wars
Versus humans, build choices are mindgames
Epiko Regal leans a little harder on variance, though the gap is small.
Epiko Regal
Card draw order randomises each match's options
Halo Wars
Scouting hides enemy composition early
Halo Wars leans a little harder on optimization, though the gap is small.
Epiko Regal
Deck construction and elixir-style economy are studyable
Halo Wars
Build orders and counter-unit economy
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.