Xiahou Dun, the One-Eyed [Judge Gift Cards 2012] Portal Whenever another nontoken Dragon enters

Whenever another nontoken Dragon enters the battlefield under your control

you'll understand why

Sacrifice Aura of Silence: Destroy target artifact or enchantment

Set: Urza's Destiny Type: Artifact Creature — Construct Rarity: Rare Cost: {3} {T}: Reveal any number of artifact cards in your hand

Xiahou Dun, the One-Eyed [Judge Gift Cards 2012] Portal Whenever another nontoken Dragon entersSet: Judge Gift Cards 2012 Type: Legendary Creature Human Soldier Rarity: Rare Cost: {2}{B}{B} Horsemanship (This creature can't be blocked except by creatures with horsemanship.) Sacrifice Xiahou Dun, the One Eyed: Return target black card from your graveyard to your hand. Activate only during your turn, before attackers are declared.