Body Double⁣ - Mystery Booster 2: Reprints from Across Magic's History⁣ (Uncommon)

Blur Sliver grants all Sliver creatures you control haste, allowing them to attack or tap for abilities right after entering the battlefield. This capability can quickly overwhelm opponents with a sudden offensive, making it effective in Sliver tribal strategies that focus on swarming the board. However, its utility is limited to Slivers, so it won't benefit more diverse creature types.