At a casual or precon-level table, absolutely
You need: Three Hoothoot (Temporal Forces, 126) Three Bouffalant (Stellar Crown, 119) Two Noctowl (Temporal Forces, 127) Two Terapagos ex (Stellar Crown, 128) Two Snorlax (Lost Origin, 143) One Lumineon V (Brilliant Stars, 40) One Fezandipiti ex (Shrouded Fable, 38) One Noctowl (Stellar Crown, 115) One Fan Rotom (Stellar Crown, 118) One Radiant Greninja (Astral Radiance, 46) The Bouffalant help to mitigate damage, while Fan Rotom, Radiant Greninja, and Lumineon V make finding specific cards to set up with a lot easier
Ok Chansey #187 (Pokemon Twilight Masquerade) Details All prices are the current market price
In the earliest days of the game, Trainer cards had no restrictions on their use, so with the maximum 4 copies allowed in the deck, a player could draw 8 extra cards in one turn if they were all in the hand during the same turn
No, counters of any kind stay on a transformed card
Between these three sets, over 300 Pokemon were added to the shiny vault.