Grand Horn of Heaven ends the Main Phase at the incorrect time

  1. When “Grand Horn of Heaven” resolves the effect of “Negate the Summon, and if you do, destroy that monster, then your opponent draws 1 card, then end the Main Phase.”, Omega promts the players to activate effects after it resolves before prompting the opponent to change the Phase. Only after the chain on resolution has resolved, or both players have passed priority once, Omega promts the phase change.

  2. Have your opponent set “Grand Horn of Heaven”, and have a face-up card. During the Main Phase 1, attempt the special summon of “Ext Ryzeal”, sending “Mereoligic Aggregator”, and have the opponent negate the summon with “Grand Horn of Heaven”. You will be promted to trigger “Mereologic Aggregator” and see it resolve before being promted for the phase change.

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6x8rENi5dYu7vHlLFawb6aVdIgKDOGmWIH4ELetw/tjZYqU0O15cLE2WqtXiXKkKMqOl0+cgeJeCJ/eW8InFI0tzq+Nw1anOTE8tVI9eOrE4PuKs+w9NOsXR+TPj06cWxivT68WlsTPTy2j28NrxCQeXypPe/KWp8ZExcubY7Em4dPJQECzMjT9QXnDKa2fG4Pmp+cnJRe8AnvQn1g6en1yvjO73p0eWD5/z9nmHlh88XTo6tXB29MT88f37qg+6ew+sPXTyyOyB4sS4TS6dnDmIZibWL85cuufwoeJSsHDkwoXVU5PT65/cVz4/4a3P+efKZP3Cwil379LhSTQ+CRc8WP3E2j2LxUenDxw+i+CD62R2Hj1Ezu07u3J6L1k8tH96pgQPH1pbGx1ZnhoZue8+kJsqFy+VZsN/K9Wjxcr8yjwdnhNssG1wFyvil6HwFPYvXyhVwneXosHPQjk8AP4H
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  3. The opponent should have been promted for the phase change during the resolution of “Grand Horn of Heaven”

  4. Linux