If a showdown results in both players having the same might, what happens?

When units with equal Might face each other in a Showdown, both sides deal damage simultaneously equal to their total Might. All units that receive lethal damage are sent to the trash.

According to RiftJudge FAQ #2333:

• Mutual Destruction: If both sides are destroyed, the battlefield becomes empty and control is lost.
• No Conquest: Equal Might results in mutual destruction with no conquest and no points awarded.

Key Mechanics:

• Simultaneous Damage: Both players deal their total Might as damage at the same time.
• Damage Assignment: Per Rule 443.1.d, starting with the attacker, each player assigns damage equal to their summed Might among the opponent's units.
• Lethal Damage: Units are killed if they take damage equal to or greater than their Might.
• Might vs. Damage: As noted in FAQ #3004 and #3817, damage does not reduce a unit's Might value; Might remains constant during the Showdown regardless of damage taken.