head to head
vs
Governor of Poker 3vsMagic: The Gathering Arena
Governor of Poker 3 leans Variance (Grand Arena); Magic: The Gathering Arena leans Optimization (Grand Arena).
Governor of Poker 3Magic: The Gathering Arena
Axis by axis
Execution1 vs 1
Even - both lean on execution about the same.
Reads6 vs 7
Magic: The Gathering Arena leans harder on reads: Bluffing instants and combat tricks against humans
Variance8 vs 7
Governor of Poker 3 leans harder on variance: Hidden cards and the deck dominate each hand
Optimization6 vs 8
Magic: The Gathering Arena leans harder on optimization: Deepest sequencing, deckbuilding, and stack puzzles
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.