Cheapest priced copy (Modern Horizons 2): $0.35 at Card Kingdom, near mint, their price list as of .
Sudden Edict 
Instant · Rare · Secret Lair Promo · #39
Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)
Target player sacrifices a creature of their choice.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
3 printings · $0.35 to $74.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Modern Horizons 2 | 100 | Uncommon | $0.35 | $0.49 |
| Modern Horizons 2 | 346 | Uncommon | $0.35 | $0.49 |
| Secret Lair Promo | 39 | Rare | $18.99 | $74.99 |
6 rulings from Wizards of the Coast
- 18 June 2021Players may turn face-down creatures face up while a spell with split second is on the stack.
- 18 June 2021If the resolution of a triggered ability involves casting a spell, that spell can't be cast if a spell with split second is on the stack.
- 18 June 2021After a spell with split second resolves (or otherwise leaves the stack), players may again cast spells and activate abilities before the next object on the stack resolves.
- 18 June 2021Players still get priority while a card with split second is on the stack; their options are just limited to mana abilities and certain special actions.
- 18 June 2021Casting a spell with split second won't affect spells and abilities that are already on the stack.
- 18 June 2021Split second doesn't stop triggered abilities from triggering, such as that of Chalice of the Void. If one does, its controller puts it on the stack and chooses targets for it, if any. Those abilities will resolve as normal