Every distinct wording since 2010, newest first.
April 22, 2021 · Strixhaven
Spectacle is a static ability that functions on the stack. “Spectacle [cost]” means “You may pay [cost] rather than pay this spell’s mana cost if an opponent lost life this turn.” Casting a spell for its spectacle cost follows the rules for paying alternative costs in rules 601.2b and 601.2f–h.
January 24, 2020 · Theros Beyond Death
Escape represents a static ability that functions while the card with escape is in a player’s graveyard. “Escape [cost]” means “You may cast this card from your graveyard by paying [cost] rather than paying its mana cost.” Casting a spell using its escape ability follows the rules for paying alternative costs in rules 601.2b and 601.2f–h.