Very early data of the changes in buckets with 24.4. Because of how buckets data is collected, you need to wait for at least 3 days to have accurate new data

duels-buckets-diff.json

[
    {
        "bucketId": "PVPDR_Duels_Buckets_Deathrattl",
        "bucketName": "Deathly Minions",
        "bucketClasses": [
            "HUNTER"
        ],
        "cards": [
            {
                "cardId": "MAW_011",
                "cardName": "Defense Attorney Nathanos"
            },
            {
                "cardId": "REV_356",
                "cardName": "Batty Guest"
            }
        ],
        "removedCards": []
    },
    {
        "bucketId": "PVPDR_TEST_SmartBucketTestLabe",
        "bucketName": "Group Learning",
        "bucketClasses": [
            "DEMONHUNTER",
            "DRUID",
            "HUNTER",
            "MAGE",
            "PALADIN",
            "PRIEST",
            "ROGUE",
            "SHAMAN",
            "WARLOCK",
            "WARRIOR"
        ],
        "cards": [
            {
                "cardId": "EX1_045",
                "cardName": "Ancient Watcher"
            },
            {
                "cardId": "OG_293",
                "cardName": "Dark Arakkoa"
            },
            {
                "cardId": "ULD_155",
                "cardName": "Unseal the Vault"
            }
        ],
        "removedCards": [
            {
                "cardId": "BAR_720",
                "cardName": "Guff Runetotem"
            },
            {
                "cardId": "GVG_027",
                "cardName": "Iron Sensei"
            },
            {
                "cardId": "LOOT_091",
                "cardName": "Lesser Pearl Spellstone"
            },
            {
                "cardId": "OG_338",
                "cardName": "Nat, the Darkfisher"
            }
        ]
    },
    {
        "bucketId": "PVPDR_Duels_Buckets_Secret",
        "bucketName": "Traps and Trappers",
        "bucketClasses": [
            "HUNTER"
        ],
        "cards": [
            {
                "cardId": "MAW_009",
                "cardName": "Shadehound"
            },
            {
                "cardId": "MAW_010",
                "cardName": "Motion Denied"
            },
            {
                "cardId": "MAW_011",
                "cardName": "Defense Attorney Nathanos"
            }
        ],
        "removedCards": []
    },
    {
        "bucketId": "PVPDR_Duels_Buckets_Weapon",
        "bucketName": "Arsenal",
        "bucketClasses": [
            "WARRIOR"
        ],
        "cards": [
            {
                "cardId": "MAW_029",
                "cardName": "Weapons Expert"
            }
        ],
        "removedCards": []
    },
    {
        "bucketId": "PVPDR_Duels_Buckets_PaDivine",
        "bucketName": "Holy Warriors",
        "bucketClasses": [
            "PALADIN"
        ],
        "cards": [
            {
                "cardId": "MAW_015",
                "cardName": "Jury Duty"
            },
            {
                "cardId": "MAW_016",
                "cardName": "Order in the Court"
            },
            {
                "cardId": "MAW_017",
                "cardName": "Class Action Lawyer"
            }
        ],
        "removedCards": []
    },
    {
        "bucketId": "PVPDR_Duels_Buckets_DHRelic",
        "bucketName": "Relic Hunter",
        "bucketClasses": [
            "DEMONHUNTER"
        ],
        "cards": [
            {
                "cardId": "MAW_008",
                "cardName": "Sightless Magistrate"
            },
            {
                "cardId": "MAW_012",
                "cardName": "All Fel Breaks Loose"
            },
            {
                "cardId": "MAW_014",
                "cardName": "Prosecutor Mel'tranix"
            }
        ],
        "removedCards": []
    },
    {
        "bucketId": "PVPDR_Duels_Buckets_DHControl",
        "bucketName": "Divide and Conquer",
        "bucketClasses": [
            "DEMONHUNTER"
        ],
        "cards": [
            {
                "cardId": "MAW_008",
                "cardName": "Sightless Magistrate"
            },
            {
                "cardId": "MAW_012",
                "cardName": "All Fel Breaks Loose"
            }
        ],
        "removedCards": []
    },
    {
        "bucketId": "PVPDR_Duels_Buckets_RRemoval",
        "bucketName": "Sneaky Tricks",
        "bucketClasses": [
            "ROGUE"
        ],
        "cards": [
            {
                "cardId": "MAW_018",
                "cardName": "Perjury"
            },
            {
                "cardId": "MAW_019",
                "cardName": "Murder Accusation"
            },
            {
                "cardId": "MAW_020",
                "cardName": "Scribbling Stenographer"
            }
        ],
        "removedCards": []
    },
    {
        "bucketId": "PVPDR_Duels_Buckets_NBattlecry",
        "bucketName": "Battlecries and Combos",
        "bucketClasses": [
            "NEUTRAL"
        ],
        "cards": [
            {
                "cardId": "MAW_004",
                "cardName": "Soul Seeker"
            },
            {
                "cardId": "MAW_033",
                "cardName": "Sylvanas, the Accused"
            }
        ],
        "removedCards": []
    },
    {
        "bucketId": "PVPDR_Duels_Buckets_Armor",
        "bucketName": "Iron and Steel",
        "bucketClasses": [
            "WARRIOR"
        ],
        "cards": [
            {
                "cardId": "MAW_027",
                "cardName": "Call to the Stand"
            },
            {
                "cardId": "MAW_028",
                "cardName": "Mawsworn Bailiff"
            },
            {
                "cardId": "MAW_029",
                "cardName": "Weapons Expert"
            }
        ],
        "removedCards": []
    },
    {
        "bucketId": "DALA_Druid_11",
        "bucketName": "Big Friends",
        "bucketClasses": [
            "NEUTRAL"
        ],
        "cards": [
            {
                "cardId": "MAW_032",
                "cardName": "Tight-Lipped Witness"
            },
            {
                "cardId": "MAW_033",
                "cardName": "Sylvanas, the Accused"
            },
            {
                "cardId": "REV_013",
                "cardName": "Stoneborn Accuser"
            }
        ],
        "removedCards": []
    },
    {
        "bucketId": "AV_119",
        "bucketName": "To the Front!",
        "bucketClasses": [
            "NEUTRAL"
        ],
        "cards": [
            {
                "cardId": "MAW_031",
                "cardName": "Afterlife Attendant"
            },
            {
                "cardId": "MAW_033",
                "cardName": "Sylvanas, the Accused"
            },
            {
                "cardId": "REV_843",
                "cardName": "Sinfueled Golem"
            }
        ],
        "removedCards": []
    },
    {
        "bucketId": "PVPDR_Duels_Buckets_Beast",
        "bucketName": "Beasts",
        "bucketClasses": [
            "HUNTER"
        ],
        "cards": [
            {
                "cardId": "OG_179",
                "cardName": "Fiery Bat"
            }
        ],
        "removedCards": []
    },
    {
        "bucketId": "PVPDR_Duels_Buckets_WControl",
        "bucketName": "In Control",
        "bucketClasses": [
            "WARLOCK"
        ],
        "cards": [
            {
                "cardId": "MAW_000",
                "cardName": "Imp-oster"
            },
            {
                "cardId": "MAW_001",
                "cardName": "Arson Accusation"
            },
            {
                "cardId": "MAW_002",
                "cardName": "Habeas Corpses"
            }
        ],
        "removedCards": []
    },
    {
        "bucketId": "PVPDR_Duels_Buckets_ShControl",
        "bucketName": "Hexes and Vexes",
        "bucketClasses": [
            "SHAMAN"
        ],
        "cards": [
            {
                "cardId": "MAW_003",
                "cardName": "Totemic Evidence"
            },
            {
                "cardId": "MAW_005",
                "cardName": "Framester"
            },
            {
                "cardId": "MAW_030",
                "cardName": "Torghast Custodian"
            }
        ],
        "removedCards": []
    },
    {
        "bucketId": "PVPDR_Duels_Buckets_WZoo",
        "bucketName": "Swarming",
        "bucketClasses": [
            "WARLOCK"
        ],
        "cards": [
            {
                "cardId": "MAW_000",
                "cardName": "Imp-oster"
            }
        ],
        "removedCards": []
    },
    {
        "bucketId": "PVPDR_Duels_Buckets_DHBig",
        "bucketName": "Overwhelm",
        "bucketClasses": [
            "DEMONHUNTER"
        ],
        "cards": [
            {
                "cardId": "BT_761",
                "cardName": "Coilfang Warlord"
            },
            {
                "cardId": "MAW_012",
                "cardName": "All Fel Breaks Loose"
            }
        ],
        "removedCards": []
    },
    {
        "bucketId": "PVPDR_Duels_Buckets_PDragon",
        "bucketName": "Dragons",
        "bucketClasses": [
            "PRIEST"
        ],
        "cards": [
            {
                "cardId": "MAW_022",
                "cardName": "Incriminating Psychic"
            }
        ],
        "removedCards": []
    },
    {
        "bucketId": "PVPDR_Duels_Buckets_PaSlver",
        "bucketName": "The Silver Hand",
        "bucketClasses": [
            "PALADIN"
        ],
        "cards": [
            {
                "cardId": "MAW_015",
                "cardName": "Jury Duty"
            }
        ],
        "removedCards": []
    },
    {
        "bucketId": "PVPDR_Duels_Buckets_ShTotems",
        "bucketName": "Totems",
        "bucketClasses": [
            "SHAMAN"
        ],
        "cards": [
            {
                "cardId": "MAW_003",
                "cardName": "Totemic Evidence"
            }
        ],
        "removedCards": []
    },
    {
        "bucketId": "PVPDR_Duels_Buckets_Tokens",
        "bucketName": "Nature's Army",
        "bucketClasses": [
            "DRUID"
        ],
        "cards": [
            {
                "cardId": "MAW_024",
                "cardName": "Dew Process"
            },
            {
                "cardId": "MAW_025",
                "cardName": "Attorney-at-Maw"
            },
            {
                "cardId": "MAW_026",
                "cardName": "Incarceration"
            }
        ],
        "removedCards": []
    },
    {
        "bucketId": "PVPDR_Duels_Buckets_MSecret",
        "bucketName": "Enigmas",
        "bucketClasses": [
            "MAGE"
        ],
        "cards": [
            {
                "cardId": "MAW_006",
                "cardName": "Objection!"
            },
            {
                "cardId": "MAW_013",
                "cardName": "Life Sentence"
            },
            {
                "cardId": "MAW_101",
                "cardName": "Contract Conjurer"
            }
        ],
        "removedCards": []
    },
    {
        "bucketId": "PVPDR_Duels_Buckets_PMind",
        "bucketName": "What's Mind is Mine",
        "bucketClasses": [
            "PRIEST"
        ],
        "cards": [
            {
                "cardId": "MAW_021",
                "cardName": "Clear Conscience"
            },
            {
                "cardId": "MAW_022",
                "cardName": "Incriminating Psychic"
            },
            {
                "cardId": "MAW_023",
                "cardName": "Theft Accusation"
            }
        ],
        "removedCards": []
    }
]