Invigorating Hot Spring

Invigorating Hot Spring enters the battlefield
with four +1/+1 counters on it.
Modified creatures you control have haste.
(Equipment, Auras you control, and counters are modifications.)
Remove a +1/+1 counter from Inv. Hot Spring:
Put a +1/+1 counter on target creature
you control.
Activate only as a sorcery and only
once each turn.