The second and third abilities of Champions from Beyond don't care what happens to those creatures after you attack with them
"Spectacle [cost]" means "You may pay [cost] rather than pay this spell's mana cost if an opponent lost life this turn." Damage dealt to a player causes that player to lose that much life
Each Set Booster contains 12 Magic cards, 1 Art Card (includes a D&D monster stat block on the back in 33% of packs), and 1 token, ad card, or special card from Magic's history (a card from "The List")
Cards like Elegy Acolyte, Insatiable Skittermaw, Interceptor Mechan, and Lightless Evangel all get extra benefits from whatever sacrifice I make each turn at the altar of Edea
While the second and third abilities of Champions from Beyond have "Party" in their flavor words, neither of them refer to a player's party (a mechanic from previous releases that also uses the term "full party")