Thrumming Hivepool (EOE-BF)

Artifact

Affinity for Slivers (This spell costs less to cast for each Sliver you control.) Slivers you control have double strike and haste. At the beginning of your upkeep, create two 1/1 colorless Sliver creature tokens.

"I'll never escape this rock, but I fear they will." —Decrypted log 4.11