Eldritch Syphon

Thwart {3} (Counter this spell. Any player
may pay this, but they each lose 3 life &
then you gain 3 life or Reconsider 2)
You may pay {b} rather than the mana cost.
If so an opponent gains 3 life & you lose 3.
Distribute up to 2 -1/-1 counters & then
you may distribute up to 2 +1/+1 counters.