when was skull invitation II in yugioh master duel?

Skull Invitation II in Yu-Gi-Oh! Master Duel ran from July 25, 2025 after maintenance until July 28, 2025 at 04:59 AM GMT.

For context, it was a Tryout Duel event where both players started with Skull Invitation in their Spell/Trap Zones , which made it a burn-focused gimmick event.

Quick Scoop

• Event name: Tryout Duel - Skull Invitation 2.

• Start: July 25, 2025 after maintenance.

• End: July 28, 2025 at 04:59 AM GMT.

• Mode: Special Tryout Duel with Skull Invitation on both sides from the start.

Note

There was also an earlier Skull Invitation event in 2024, but Skull Invitation II specifically refers to the 2025 rerun.

TL;DR: July 25–28, 2025.