head to head
vs
Catan UniversevsHearthstone
Catan Universe leans Variance (Systems & Chaos); Hearthstone leans Variance (Grand Arena).
Catan UniverseHearthstone
Axis by axis
Execution0 vs 1
Hearthstone leans harder on execution: Clicks only, no mechanical skill
Reads5 vs 6
Hearthstone leans harder on reads: Human opponents bluff and adapt mid-match
Variance7 vs 7
Even - both lean on variance about the same.
Optimization6 vs 7
Hearthstone leans harder on optimization: Deckbuilding, mulligans, and mana curves matter
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.