mtg caverns of ixalan commander decks Magic: The Gathering The Lost Deck (For example Magic The Gathering Lost Caverns

With that said, if you're not doing the lands thing or the top-of-library manipulation thing, then I'm not sure that it's worth spending the space on this staple anymore

Even if your opponent removes this, countering the ability of a permanent often does enough: Imagine catching the enters ability of Portal to Phyrexia, or a planeswalker ultimate

Im supposed to pair it with cards that pay me off for sacrificing artifacts, or for sacrificing creatures

It even functions with split cards like Commit / Memory, dealing damage equal to the combined mana value

Its also possible to turn a Yshtola deck full of free spells into an instant-win engine