Abyssal Thicketshaper

Whenever Abyssal Thicketshaper enters the battlefield or attacks, you may sacrifice a creature.
If you do, put two +1/+1 counters on Abyssal Thicketshaper.
At the beginning of each opponent's upkeep, that player sacrifices a creature. If they can't, Abyssal Thicketshaper deals 2 damage to them.
The demon emerges, twisting life to its will and leaving
only corruption in its wake.