Nathan the Free-Timeless

Nathan the Free-Timeless enters the battlefield
with X free-time counters on it.
{u}{t}, Remove a free-time counter from this card:
Untap up to two target creatures you control.
{b}, Sacrifice a creature: Put a free-time counter
on Nathan the Free-Timeless.
{r}{ut}: Nathan the Free-Timeless deals damage
equal to its power to any target.
Nathan the Free-Timeless's power is equal to the number of free-time counters on it.