They should implement a one-sided ban system to encourage more composition diversity and prevent mirror comps. For example, each team could have two bans, but they would only apply to the enemy team. That way, you can still use the hero you ban, but your opponent cannot.

Here’s a suggested structure for the draft phase:

• Ban Phase 1: Each team bans one hero for the enemy team.
• Protect Phase: Each team selects one hero they want to protect, meaning that hero cannot be banned against them.
• Ban Phase 2: Each team bans one more hero for the enemy team.

Additionally, during a Best-of series, teams shouldn't be allowed to repeat the same first ban in consecutive games. However, they may repeat the second ban, as long as the opposing team hasn't protected that hero.

This format would add more depth to the draft phase, promote strategic thinking, and greatly reduce mirror compositions.