Demonic Stallion

Demonic Stallion comes into play
with 3 +1/+1 counters on it
When Demonic Stallion attacks or blocks,
remove a +1/+1 counter from demonic steed
{x}{t} Add {x} +1/+1 counters onto Demonic Stallion (You cannot have more than three +1/+1 counters on Demonic Stallion at a time)