![Sphinx's Decree [Rivals of Ixalan Prerelease Promos]](https://cdn.shopify.com/s/files/1/0836/1931/6002/products/abaa4b20-7880-5223-826f-423f3d30c7ca.jpg?v=1696583107)
Sphinx's Decree [Rivals of Ixalan Prerelease Promos]
| Set: | Rivals of Ixalan Prerelease Promos |
| Type: | Sorcery |
| Rarity: | Rare |
| Cost: | 1W |
| Colors: | W |
Each opponent can't cast instant or sorcery spells during that player's next turn.
"Be still."
—Azor