Its sorcery-speed for a reason at instant speed, itd be way too strong
I personally like the idea of pairing up with Sarah Jane Smith and leaning into Clue tokens, since you can generate them to grow the Doctor large, and then post-combat you can sacrifice one or two to draw some more action
Each Play Booster may contain these cards: DFT 1375
For comparison, in Ravnica Remastered, the only retro frame nonfoils with a price above $10 are the ten shocklands, Cyclonic Rift, and Bruvac the Grandiloquent
Summon: Esper Valigarmanda took me a bit to warm up to this card, but given more time to look at it this is strong
Even if the Curtains die to a Lightning Bolt or Unholy Heat (rarely with delirium on Turn 2) after blocking the Monkey, they still blocked the Monkey before trading, when the typical auto-loss pattern is having your Turn 1 creature die to removal on the spot while your opponent gets a free Treasure and card flip