Sorrow's Penance

Equipped creatures gets -1/-1 and deathtouch.
When a creature dies, the equipped creature gains
1 Soul Counter. (A creature gains -1/-1 for each
Soul Counter it has)
Equipped creature gets: "{t}, Remove X soul counters, the next spell you cast costs X less
to cast."
Equip: {2}{p/b}
Equip Jade Blomqvist or Jade, Arbiter's Squire: {0}
The screams echo and never cease