Cosmic Drive is a legendary item in League of Legends. Cosmic Drive costs 3000 gold and grants 100 Ability Power, 30 Ability Haste, 5% Move Speed and a Unique Passive (Spelldance).
+100 Ability Power
+30 Ability Haste
+5% Move Speed
Unique - Spelldance: Damaging a champion generates a stack of 2.5% Move Speed every 1.5 seconds for the next 5 seconds up to 10% Move Speed. At 4 stacks, gain an additional 10% Move Speed (20% Move Speed total). Dealing damage refreshes this effect.