Knight of Desolation

Indestructible
Knight of Desolation cant be countered.
When Knight of Desolation enters the battlefield
, target player sacrifices three permenants.
Whenever an opponent sacrifices a creature, they
lose 3 life you gain 3 life.
{10}: Destroy up to four target creatures an
opponent controls, for each creature destroyed
this way, they must either discard a card or
sacrifice an additional permenant.