Xanathar, Guild Kingpin [Secret Lair Drop Series] Backpack Whenever enchanted Forest is tapped

Whenever enchanted Forest is tapped for mana

Set: Ravnica: City of Guilds Type: Sorcery Rarity: Rare Cost: {5}{U} Choose a card name

Set: Secret Lair Drop Series Type: Creature — Sliver Rarity: Rare Cost: {4}{R} Sliver creatures you control have "Whenever this creature attacks

Set: The List Type: Creature — Giant Warrior Rarity: Rare Cost: {3}{W}{W} Vigilance

Set: Oversize Cards Type: Creature — Phyrexian Carrier Rarity: Rare Cost: {3}{B}{B} {T}

Xanathar, Guild Kingpin [Secret Lair Drop Series] Backpack Whenever enchanted Forest is tappedSet: Secret Lair Drop Series Type: Legendary Creature Beholder Rarity: Mythic Cost: {4}{U}{B} At the beginning of your upkeep, choose target opponent. Until end of turn, that player can't cast spells, you may look at the top card of their library any time, you may play the top card of their library, and you may spend mana as though it were mana of any color to cast spells this way.