head to head
vs
For the KingvsSlay the Spire II
For the King leans Variance (Systems & Chaos); Slay the Spire II leans Variance (Systems & Chaos).
For the KingSlay the Spire II
Axis by axis
Execution1 vs 1
Even - both lean on execution about the same.
Reads0 vs 0
Even - both lean on reads about the same.
Variance7 vs 8
Slay the Spire II leans harder on variance: shuffled deck and random encounters/relics
Optimization7 vs 8
Slay the Spire II leans harder on optimization: deck synergy and run planning is solvable
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.