This card from the Time Cataclysm Environment deck deals 1 damage to everything whenever a card is "put into play". I was not clear on whether this includes One-Shot cards, but we had Mr. Fixer in the game, and his Scrap Yard card says in part, "Then, if you have the card Overdrive in your trash, you may put it into play." This somewhat odd wording seemed to imply that One-Shots do indeed trigger SST, so I went with that interpretation...and as a result, La Capitan ground through four already damage-dealing One-Shots in her turn, having gotten all of her other cards on the table by now, and we heroes died miserably when we'd already been losing by inches.
Did I play this correctly? Or is SST supposed to only be triggered by cards that stay in play past the resolution of their effects?
One shots are put into play and do trigger Surprise Shopping trip.
Anything which is played is 'put into play', however some card effects will cause something to be 'put into play' without being played. This is important for things which trigger off of a card being played or which prevent you from playing cards, but for Surprise Shopping trip it triggers in both cases.