All you really need is one untapped land, our friendly troll, and either Reanimate or Animate Dead to have this on the battlefield as early as turn 2
But the format's rules are pretty different
Green has access to plenty of great auras like Rancor and Ancestral Mask that shine when paired with cheap hexproof creatures like Gladecover Scout and Silhana Ledgewalker
At the same time, it can handily keep the most popular archetypes of Sagas and Equipment in check, while helping you hit lands, so it could well creep up a little
Our options are therefore as follows: Azorius v Jund: Will, Scion of Peace & Ikra Shidiqi, the Usurper + Kediss, Emberclaw Familiar Rakdos v Bant: Judith, Carnage Connoisseur & Shanna, Purifying Blade Selesnya v Grixis: Trelasarra, Moon Dancer & Solkanar the Swamp King Boros v Sultai: Firesong and Sunspeaker & Zimone and Dina Golgari v Jeskai: Beledros Witherbloom & The Archimandrite Okay, there should be six, but if you can find an oppositional pair in Dimir and Naya that can both be reasonably called a life gain deck, go for it
It may seem daunting to start playing a game that has been around since 1996 and features over 1000 different Pocket Monsters