Izoni, Center of the Web
Legendary Creature — Elf Detective
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 menace and reach.
Sacrifice four tokens: Surveil 2, then draw two cards. You gain 2 life.
Marko Manev
Rulings
If you can't exile enough cards to meet or exceed the required mana value, you can't choose to collect evidence at all.
(wotc • 2024-02-02)
Once 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.
(wotc • 2024-02-02)
Printings
Rulings
If you can't exile enough cards to meet or exceed the required mana value, you can't choose to collect evidence at all.
(wotc • 2024-02-02)
Once 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.
(wotc • 2024-02-02)