Izoni, Center of the Web is a rare Legendary Creature — Elf Detective card from Murders at Karlov Manor Promos (PMKM), collector number 209p. Current market price: $0.28 (foil $0.52), TCGplayer market prices via Scryfall.
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.