Scion of the Ur-Dragon [Commander 2017] Set_The Dark Whenever this creature attacks

Whenever this creature attacks

Set: Legends Type: Legendary Creature — Human Cleric Rarity: Rare Cost: {G}{W}{U} {G}{W}{U}

but my host would casually push it down before I could make out what it was

Card TypeLegendary Creature — Giant Soldier

Attach Scythe of the Wretched to that creature

Scion of the Ur-Dragon [Commander 2017] Set_The Dark Whenever this creature attacksSet: Commander 2017 Type: Legendary Creature Dragon Avatar Rarity: Rare Cost: {W}{U}{B}{R}{G} Flying {2}: Search your library for a Dragon permanent card and put it into your graveyard. If you do, Scion of the Ur Dragon becomes a copy of that card until end of turn. Then shuffle. "I am the blood of the ur dragon, coursing through all dragonkind."