Gennaios - Seraph of Silence

Lifelink, delve
When Gennaios enters the battlefield each opponent must sacrifice the creature they control with the greatest combined power and toughness.
{t}{b}{b}: Sacrifice a land, deal 3 damage to each opponent and their creatures, and tap all lands they control.
"..upon every man and beast which shall be found
in the field, and shall not be brought home, the hail shall come down upon them, and they shall die."