The term has since become obsolete and each card that it appeared on has been given an errata
There are also some number of quality utility lands that involve sacrificing that make this card even better: favorite Mirrorpool springs to mind, but theres also Buried Ruin, Command Beacon, Inventors Fair, Urzas Saga, and if youre a degenerate Strip Mine
What I love about this sideboard is that the deck remains focused on its game plan even after the sideboard cards come in
While other Commanders in that set like Osgir, the Reconstructor were warmly received by fans, Adrix and Nev have since been slotted into a huge number of Commander decks as a valuable engine piece
I also love this synergy in loads of places, and as an equippable dork, when your equipped dork is answered, you can swing with this
Spider-Man, Peter Parker Spider-Man, Peter Parker makes use of the trivial nature of gaining life and turns it into a wonderfully protective effect