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.

Execution · Practiced Mastery
A gleefully violent 1997 Build-engine shooter starring undead gunslinger Caleb.

Optimization · Practiced Mastery
A chaotic co-op action game where wizards combine eight elements into thousands of spells, often frying each other.
Blood leans Execution (Practiced Mastery); Magicka leans Optimization (Practiced Mastery).
Blood leans a little harder on execution, though the gap is small.
Blood
Fast Build-engine combat demands aim and dodging
Magicka
Typing element combos quickly mid-combat is the hands test
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Blood
Niche multiplayer only; campaign enemies are scripted
Magicka
Enemies are scripted; friendly fire isn't adaptive
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Blood
Some enemy spawn and hitscan unpredictability
Magicka
Co-op friendly-fire chaos adds unpredictability
Magicka leans a little harder on optimization, though the gap is small.
Blood
Secret hunting, weapon economy, route knowledge
Magicka
Discovering and exploiting spell combinations dominates
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.