Cheapest priced copy (Murders at Karlov Manor): $0.49 at Card Kingdom, near mint, their price list as of .
Izoni, Center of the Web 
Legendary Creature — Elf Detective · 5/4 · Rare · Murders at Karlov Manor Promos · #209p
Menace
Whenever Izoni enters or attacks, you may collect evidence 4. If you do, create two 2/1 black and green Spider creature tokens with reach and menace.
Sacrifice four tokens: Surveil 2, then draw two cards. You gain 2 life.
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
4 printings · $0.49 to $2.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Murders at Karlov Manor | 209 | Rare | $0.49 | $0.49 |
| Murders at Karlov Manor | 362 | Rare | $0.49 | $0.49 |
| Murders at Karlov Manor Promos | 209p | Rare | $0.49 | $2.99 |
| Murders at Karlov Manor Promos | 209s | Rare | — | $1.49 |
2 rulings from Wizards of the Coast
- 2 February 2024If you can't exile enough cards to meet or exceed the required mana value, you can't choose to collect evidence at all.
- 2 February 2024Once you've announced that you're casting a spell, players can't take actions until you've finished doing so. Notably, opponents can't try to remove cards from your graveyard to stop you from collecting evidence.