This card actually came from a very different place
While these are the most efficient examples, these arent the only lands that can be sacrificed to destroy other lands
The creature side of things is Questing Druid, a two-mana green 1/1 that reads: Whenever you cast a spell that's white, blue, black, or red, put a +1/+1 counter on Questing Druid. In the right deck, this card isnt just card draw but a terrifying threat, as it could grow absolutely massive fairly quickly
It creates an interesting decision for them to either save what theyre casting or play an additional spell that turn
Getting to cast multiple free spells a turn can be game-winning, and Etali brings the heat where thats concerned
This dual-threat design allows the deck to pivot its strategy