Helix of Fate

Helix of Fate enters the battlefield tapped.
Whenever a player casts a spell, put a charge counter on Helix of Fate.
{1}, {t}, Sacrifice Helix of Fate: Destroy each nonland permanent with converted mana cost equal to or less than the number of charge counters on Helix of Fate, then draw a card.
Only one helix can cause so much distrust and death.