Clockwork Steed enters the battlefield with four 10 counters on it. br Clockwork Steed cant be blocked by artifact creatures. br At end of combat if Clockwork Steed attacked or blocked this combat remove a 10 counter from it. br
Put up to X 10 counters on Clockwork Steed. This ability cant cause the total number of 10 counters on Clockwork Steed to be greater than four. Activate this ability only during your upkeep.