The Thirteenth Doctor and Yasmin Khan run a Paradox deck. It casts as many spells as possible from places other than the hand: Yasmin's exiled top cards, cascade, rebound, foretell, flashback, retrace, jump-start, The Flux and River Song's Diary. Every such cast triggers the Doctor's +1/+1 counter and a crowd of other Paradox payoffs that make tokens, Clues, Food, damage or counter doubling. Team TARDIS then untaps every creature with a counter at end step, so Yasmin and other tap-ability creatures that have picked up counters work on each opponent's turn too, and Danny Pink turns the steady counter placement into card draw. How it wins: Paradox triggers snowball into damage and a wide, growing board, with Flaming Tyrannosaurus, Memory Worm, Impending Flux and Iraxxa's tokens burning and overrunning opponents, backed by extra combats and the extra turn from Twice Upon a Time. Key roles: - Off-hand casting engines: These provide repeatable sources of spells cast from exile, the graveyard or the library, so the Paradox triggers keep firing every turn, with Yasmin Khan as the core repeatable source. (Into the Time Vortex, Return the Past, River Song's Diary) - Cascade and free-cast chains: Cascade and attack-triggered free casts turn one spell into two off-hand casts, stacking several triggers in a single turn. (Bigger on the Inside, Throes of Chaos, Ryan Sinclair) - Paradox payoffs: Each off-hand cast also deals damage, makes tokens, investigates, makes Food or doubles counters alongside the Doctor's counter, turning casting volume into board presence and reach. (Flaming Tyrannosaurus, Iraxxa, Empress of Mars, Sisterhood of Karn) - Counters, untap and draw: Counters from the Doctor, mentor, training and Clue or Food sacrifices feed Team TARDIS untaps and Danny Pink's draw. Nardole's counters make his blue mana grow and refresh each end step. (Danny Pink, Nardole, Resourceful Cyborg, Jenny Flint) - Doctor-count and trigger multipliers: Extra Doctors enable the extra turn and add demonstrate copies, while Clara doubles every Doctor trigger, Paradox included. (Twice Upon a Time // Unlikely Meeting, The Twelfth Doctor, Clara Oswald) - Clue and artifact value: Investigate effects supply artifacts that are drawn off, sacrificed for Jenny Flint counters, turned into Strax grenades, equipped via Dan Lewis, or spent on The Fugitive Doctor's flashback, which also counts as an off-hand cast. (The Fugitive Doctor, Osgood, Operation Double, Strax, Sontaran Nurse)

Paradox Power decklist

• Danny Pink
• Osgood, Operation Double
• Twice Upon a Time // Unlikely Meeting
• Become the Pilot
• Quantum Misalignment
• Nardole, Resourceful Cyborg
• Flatline
• Bill Potts
• Into the Time Vortex
• Dan Lewis
• Flaming Tyrannosaurus
• Ryan Sinclair
• Return the Past
• Impending Flux
• The Flux
• Sisterhood of Karn
• Graham O'Brien
• Karvanista, Loyal Lupari // Lupari Shield
• The Foretold Soldier
• Fugitive of the Judoon
• River Song
• Madame Vastra
• Jenny Flint
• Strax, Sontaran Nurse
• The Twelfth Doctor
• The Fugitive Doctor
• Me, the Immortal
• Frost Fair Lure Fish
• Lunar Hatchling
• Heaven Sent
• Last Night Together
• River Song's Diary
• Confession Dial
• Clara Oswald
• Chaos Warp
• Cursed Mirror
• Carpet of Flowers
• Dreamroot Cascade
• Temple of Mystery
• Vineglimmer Snarl
• Waterlogged Grove
• Desolate Lighthouse
• Rockfall Vale
• Rootbound Crag
• Temple of Abandon
• Cinder Glade
• Sheltered Thicket
• Temple of Epiphany
• Frostboil Snarl
• Stormcarved Coast
• Fiery Islet
• Game Trail
• Exotic Orchard
• Gallifrey Council Chamber
• Psychic Paper
• TARDIS
• Sonic Screwdriver
• Start the TARDIS
• Surge of Brilliance
• Iraxxa, Empress of Mars
• Memory Worm
• Decaying Time Loop
• Thijarian Witness
• Truth or Consequences
• Bigger on the Inside
• Wreck and Rebuild
• Arcane Signet
• Sol Ring
• Ponder
• Think Twice
• Preordain
• Throes of Chaos
• Cultivate
• Search for Tomorrow
• Farseek
• Beast Within
• Growth Spiral
• Talisman of Curiosity
• Talisman of Impulse
• Rogue's Passage
• Frontier Bivouac
• Reliquary Tower
• Myriad Landscape
• Temple of the False God
• Path of Ancestry
• Command Tower
• Ominous Cemetery
• 2× Island
• 2× Island
• 2× Mountain
• Mountain
• 2× Forest
• 2× Forest