mtg cards with extort Crypt Ghast (#169) (borderless) each opponent loses 1 life and you gain that much life.) Obzedat Orzhov Extort Commander Deck

Pippin, Warden of Isengard can be especially useful thanks to its two abilities

One of the best lands in Commander, Ancient Tomb is at its best in decks that thrive off fast mana

One of them has a 1/8 chance of being a Special Guest (some expansions have a card of any rarity from a special set of reprints)

Deathrite Shaman It turns out one of the best mana dorks in the game is also one of the best lifegain cards

Remember that Arena gives you five tokens for Jump In

As a fine card on its own and one that's incredibly strong with other Humans on the battlefield, this is a great example of what you're looking to play in these kinds of decks