how do adventure cards work in mtg does this card work? : r/mtg Do adventure cards still work

Im having trouble processing that

Creature - Goblin Gollum, Obsessed Stalker Skulk (This creature can't be blocked by creatures with greater power.) At the beginning of your end step, each opponent dealt combat damage this game by a creature named Gollum, Obsessed Stalker loses life equal to the amount of life you gained this turn

That cost doesn't become generic

Card Name Alternative Name Stay with Me Mana Cost Type Enchantment Rarity Mythic Rare rules Text Whenever an opponent casts a spell, you may draw a card unless that player pays

Collecting Lorcana Cards In Disney Lorcana TCG, each card is its own mini piece of Disney artwork, making the thrill of collecting cards just as exhilarating as playing