During a press conference in August 2002 at the New York Pokmon Center, several special booster packs including 10 sample e-Cards were distributed to officials for demonstration purposes
(A copy of a permanent spell becomes a token.) Triggered abilities use the word "when," "whenever," or "at." They're often written as "[Trigger condition], [effect]." Some keyword abilities are triggered abilities and will have "when," "whenever," or "at the beginning of" in their reminder text
Cultural Translation: Most often with food
Instead, this seems to be a repurposed version of the Structures mechanic posed by MTGs creator Richard Garfield back in Ravnica: City of Guilds
I mean, unless you use opaque backed card sleeves of course
5 Flutterfox Flutterfox is an animal creature card from previous fairy tale-inspired set Throne of Eldraine