Swat lets you change all of the targets of a spell not just one making it the best way to interact on the stack outside of conditional answers like Pyroblast
Plasm Capture can counter any spell your opponents play, then add the mana spent on the spell to your mana pool during your next precombat main phase
they get a ton of enjoyment out of looking for neat interactions and finding cool supporting cards
Card name (half-width space) Rarity (half-width space) X set of cards (half-width space) Tera Rarity part used words Normal, Rare, Normal Parallel, Duel Terminal, Super, Super Parallel, Ultra, Ultra Parallel, Relief, Secret, Millennium, Gold, Gold Secret, etc
While Cups and Challenges will require a legal deck, some non-official challenges have rules decided by the event organizer