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

Reads · Mind & Math
Real-time PvP card battler decided by elixir trades and outguessing your opponent.

Optimization · Mind & Math
Real-time deck duels testing counter-play prediction against draw-order variance.
Clash Royale leans Reads (Mind & Math); Minion Masters leans Optimization (Mind & Math).
Clash Royale leans a little harder on execution, though the gap is small.
Clash Royale
Placement precision and elixir timing under pressure
Minion Masters
Placement timing matters but inputs are simple
Clash Royale leans a little harder on reads, though the gap is small.
Clash Royale
Live human opponent baits and counters you
Minion Masters
Live human opponents bait, counter and adapt each match
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Clash Royale
Opponent's deck hidden until cards appear
Minion Masters
Card draw order decides what answers you hold
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Clash Royale
Elixir trades and matchup theory are deep
Minion Masters
Deckbuilding and mana-efficiency math drive the meta
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.