Thrumming Hivepool
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
Illustrated by
Edge of Eternities#356RareEnglish