How is it determined who goes first in Riftbound, and does the randomly selected player get to choose or are they forced to go first?

Ruling: A player is randomly designated after battlefields are revealed, and that designated player decides who goes first.

Sequence:

• Randomly select a player (using any mutually agreed method like dice roll or coin flip)
• That designated player chooses whether they or their opponent goes first

Nuances:

• The method of randomization (dice, coin flip, etc.) must be agreed upon by both players
• The picture rules shown are just examples, not official rules
• Tournament rules specify that the designated player decides, not that they are forced to go first