Haunted Soloist

Haunted Soloist gets +2/+2 as long as it's the
only creature you control.
{b}, Sacrifice a creature: Put a verse counter on
Haunted Soloist.
Whenever Haunted Soloist deals combat damage
to a player, you pay pay X life, where X is the
amount of verse counters on Haunted Soloist.
If you do, draw X cards.