Some players have decided to use the gold-bordered World Championship series cards as a way to solve this
They're an unusual creature type built from the ground up to be played with their own kind
The long version is: Whenever one or more creatures you control deal combat damage to a player, you may sacrifice one of them
While gaining loyalty outside of ability activation was nothing new, Nissas intentional use of landfall allows for bombastic turns where something as small as {mtg_card]Harrow[/mtg_card] or as large as Scapeshift can not only help to protect Nissa, but also allow her minus ability to be used without making her vulnerable
Not only does this card work perfectly for my favorite commander, Caesar, and my other favorite Mardu man, Negan, the Cold-Blooded, but it also overcomes my least favorite wincons, those that ping your life total outside of combat