Elen, Witch of Melancholy

Devoid (This card has no color)
Whenever a creature you control leaves the
battlefield, Elen, Witch of Melancholy gains
a tear counter.
{2}{w/b}{u}, {t}: Remove a tear counter from Elen.
If you do, regenerate all creatures you control.
{w}: Remove all tear counters from Elen. If you do,
gain X life, where X is the number of tear
counters removed from Elen.