Talon, Champion of Bards

{x}{t} Tap target creature. Put X +1/+1 counters on it. If it is a creature your opponent controls, it does not untap during its controllers next untap step.
{t} Put a sleep counter on target creature (creatures with sleep counters on them do not untap during their controller's untap step)
{g/u}{t} Gain control of target creature. Activate this ability only if you are at 10 or less life.