When are battlefields revealed during game setup?

Ruling: Battlefields are revealed after revealing Legend and Chosen Champion, but before determining first player and drawing starting hands.

Sequence:

• Step 1: Reveal Legend and Chosen Champion
• Step 2: Choose and reveal battleground (method depends on game type)
• Step 3: Determine first player and turn order
• Step 4: Draw 4 cards and mulligan

Nuances:

• Players see which battlefield their opponent picked before drawing their starting hand and making mulligan decisions