Forsaken Crossroads [Mystery Booster 2] Siren Whenever you cast your first

Whenever you cast your first spell during each opponent's turn

Set: Secret Lair Drop Promos Type: Artifact Rarity: Rare Cost: {3} Whenever a Dragon enters the battlefield under your control

Hellbent — If you have no cards in hand

Set: Murders at Karlov Manor Type: Land — Mountain Plains Rarity: Rare Elegant Parlor enters the battlefield tapped

Set: Khans of Tarkir Prerelease Promos Type: Enchantment Rarity: Rare Cost: {G}{U}{R} Creatures you control have haste

Forsaken Crossroads [Mystery Booster 2] Siren Whenever you cast your firstSet: Mystery Booster 2 Type: Land Rarity: Uncommon Forsaken Crossroads enters tapped. As Forsaken Crossroads enters, choose a color. When Forsaken Crossroads enters, scry 1. If you weren't the starting player, you may untap Forsaken Crossroads instead. T: Add one mana of the chosen color.