Swan Song [Secret Lair Drop Series] Urza's Legacy Promos but it don't say where

but it don't say where to find it

Untap up to four lands

{B}{B}: Regenerate Skithiryx

Set: Ikoria: Lair of Behemoths Prerelease Promos Type: Land — Mountain Plains Swamp Rarity: Rare ({T}: Add {R}

Set: Mercadian Masques Type: Creature — Spirit Rarity: Rare Cost: {1}{B}{B} At the beginning of your upkeep

Swan Song [Secret Lair Drop Series] Urza's Legacy Promos but it don't say whereSet: Secret Lair Drop Series Type: Instant Rarity: Rare Cost: {U} Counter target enchantment, instant, or sorcery spell. Its controller creates a 2 2 blue Bird creature token with flying. The gracefulness of their flight makes one wonder whether Nature or, indeed, a rare sort of Magic lifts their wings.