head to head
Neither is simply harder - they are hard in different places. Magic: The Gathering Arena demands more variance; StarCraft demands more execution.

Optimization · Grand Arena
A deep card game blending opponent reads, draw variance, and sequencing.

Optimization · Grand Arena
A real-time strategy classic where perfected build orders and mechanical speed decide most matches.
Magic: The Gathering Arena leans Optimization (Grand Arena); StarCraft leans Optimization (Grand Arena).
StarCraft leans clearly harder on execution.
Magic: The Gathering Arena
Pure clicks, no mechanical skill
StarCraft
APM and micro control ceiling is huge
Magic: The Gathering Arena leans a little harder on reads, though the gap is small.
Magic: The Gathering Arena
Bluffing instants and combat tricks against humans
StarCraft
scouting and predicting human opponent builds
Magic: The Gathering Arena leans clearly harder on variance.
Magic: The Gathering Arena
Mana screw and topdecks remain decisive
StarCraft
minimal hidden info beyond fog of war
StarCraft leans a little harder on optimization, though the gap is small.
Magic: The Gathering Arena
Deepest sequencing, deckbuilding, and stack puzzles
StarCraft
build orders and economy are near-solvable
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.