Abell, The Educator

{2}{g/u}{t}: Tap any number of untapped creatures
you control. Put that many enlightenment
counters on Abell, The Educator
{4}{g/u}{g/u}: Remove ten enlightenment counters
from Abell, The Educator. Double the number
of each kind of counter on all artifacts, creatures,
and lands you control. Untap all creatures you
control.
Great teachers allow for great students