Numot, the Devastator

Flying
Whenever Numot, the Devastator deals combat damage to a player, you may pay {2}{R}. If you do, destroy up to two target lands.

Avacyn, Angel of Hope

Flying, vigilance, indestructible
Other permanents you control have indestructible.

Wildfire

Each player sacrifices four lands. Wildfire deals 4 damage to each creature.

Crucible of Worlds

Catastrophe

Destroy all lands or all creatures. Creatures destroyed this way can't be regenerated.

Armageddon

Pillage

Destroy target artifact or land. It can't be regenerated.

Fall of the Thran

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I — Destroy all lands.
II, III — Each player returns two land cards from their graveyard to the battlefield.