Lost Soul [Classic Sixth Edition] SWSH008 then searches its card name

then searches its card name using an internet search engine

Set: Commander Legends: Battle for Baldur's Gate Type: Sorcery Rarity: Uncommon Cost: {3}{U}{B} Each player mills two cards

Set: Secret Lair Drop Promos Type: Legendary Creature — Human Warrior Rarity: Rare Cost: {2}{W}{U}{U}{B} Dakkon Blackblade's power and toughness are each equal to the number of lands you control

Set: Game Night: Free-for-All Type: Creature — Human Wizard Rarity: Common Cost: {2}{U} When Sea Gate Oracle enters the battlefield

What mechanics are mentioned in the card text

Lost Soul [Classic Sixth Edition] SWSH008 then searches its card nameSet: Classic Sixth Edition Type: Creature Spirit Minion Rarity: Common Cost: {1}{B}{B} Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.) Her hand gently beckons, she whispers your namebut those who go with her are never the same.