Thoughtcast Thoughtcast is one of the empowering cards for blue affinity decks
Amber/Emerald Starter Deck List Cubby - Mighty Lost Boy (x3) Dalmatian Puppy - Tail Wagger (x5) Don Karnage - Prince of Pirates (x2) Flotsam - Riffraff (x2) Helga Sinclair - Vengeful Partner (x1) Horace - No-Good Scoundrel (x2) Jasper - Common Crook (x2) Jetsam - Riffraff (x2) Kida - Atlantean (x3) Kit Cloudkicker - Tough Guy (x2) Lucky - The 15th Puppy (x1) Nani - Protective Sister (x2) Patch - Intimidating Pup (x3) Peter Pan - Lost Boy Leader (x1) Pluto - Determined Defender (x1) Pluto - Friendly Pooch (x3) Pongo - Determined Father (x1) Robin Hood - Daydreamer (x1) Rolly - Hungry Pup (x3) Starkey - Devious Pirate (x1) Tinker Bell - Generous Fairy (x2) Wendy Darling - Talented Sailor (x3) Wildcat - Mechanic (x2) Strike A Good Match (x2) Hypnotize (x2) Improvise (x3) De Vil Manor - Crueella's Estate (x3) Neverland - Mermaid Lagoon (x2) You can see the full Amber/Emerald starter deck list below via The Laughing Place
It can be anythingpower, toughness, something in rules text, the name of a card (Four Wishes, anyone?), collector number, and so on
Despite this major downside, within mono white decks, Anti-Venom and Horrifying Healer can be a real menace
This card also shows up in unicorn lifegain decks and in some just really odd spaces, like the handful of folks shoehorning this into weird builds of Chulane, Teller of Tales
However, swing with Dune Mover, Ichorclaw Myr, or Phyrexian Digester and your opponents have little time to come up with a solution
