Cheapest priced copy (Duskmourn: House of Horror): $0.49 at Card Kingdom, near mint, their price list as of .
The Tale of Tamiyo 
Legendary Enchantment — Saga · Rare · Duskmourn: House of Horror · #75
(As this Saga enters and after your draw step, add a lore counter. Sacrifice after IV.)
I, II, III — Mill two cards. If two cards that share a card type were milled this way, draw a card and repeat this process.
IV — Exile any number of target instant, sorcery, and/or Tamiyo planeswalker cards from your graveyard. Copy them. You may cast any number of the copies.
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
3 printings · $0.49 to $1.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Duskmourn: House of Horror | 75 | Rare | $0.49 | $0.49 |
| Duskmourn: House of Horror Promos | 75p | Rare | $0.49 | $0.79 |
| Duskmourn: House of Horror Promos | 75s | Rare | — | $1.49 |
5 rulings from Wizards of the Coast
- 20 September 2024The card types in Magic include artifact, battle, creature, enchantment, instant, kindred, land, planeswalker, and sorcery. Legendary, basic, and snow are supertypes, not card types; Horror and Room are subtypes, not card types.
- 20 September 2024When the first, second, or third chapter ability of The Tale of Tamiyo resolves, the ability will continue until you mill a set of two cards that share no card types or you mill one or fewer cards. You can't just pause the story whenever you want to. (And why would you? It's quite the story.)
- 20 September 2024If you don't want to cast some (or all) of the copies, you may choose not to. Any copies that you didn't cast cease to exist the next time state-based actions are checked.
- 20 September 2024Because you're paying the spells' costs, if one of the copied spells has {X} in its mana cost, you may choose its value as normal.
- 20 September 2024You cast the copies while the last chapter ability of The Tale of Tamiyo is resolving and still on the stack. You can't wait to cast them later in the turn.