mtg spirit commander precon Living Energy Deck Upgrade Guide Secrets of Strixhaven Lorehold Spirit

Some adds cards from your deck, others add life

It ported over to the UW Humans and Bant Company decks of Shadows over Innistrad Standard, and even broke into Modern for a time (back when Celestial Collonade and Vendilion Clique were the bread and butter of the deck)

Loyal Guardian

There are a number of great Spirits that you can add to the deck to really make use of that ability, all while providing extra value individually

All the cards in the deck are from the same edition

The shuffle involves splitting the deck of cards into two halves and perfectly interweaving them, causing every other card to come from each half