I think that four mana and four life to access an entire extra hand worth of cards offers an extremely high ceiling that might even see play in cEDH, but youll be living and dying off of your opponents having what you need
I can definitely see For the Common Good make waves in Baylen, the Haymaker decks or Hazel of the Rootbloom decks

1 Sidar Jabari of Zhalfir 1 Elenda and Azor 1 Exsanguinator Cavalry 1 Ichor Elixir 1 Herald of Hoofbeats 1 Locthwain Lancer 1 Chivalric Alliance 1 Path of the Enigma 1 Vodalian Wave-Knight 1 Conjurer's Mantle 1 Ethersworn Adjudicator 1 Hero of Bladehold 1 Vona, Butcher of Magan 1 Acclaimed Contender 1 Adeline, Resplendent Cathar 1 Aryel, Knight of Windgrace 1 Choked Estuary 1 Exotic Orchard 1 Fell the Mighty 1 Haakon, Stromgald Scourge 1 Josu Vess, Lich Knight 1 Knight Exemplar 1 Knight of the White Orchid 1 Knights' Charge 1 Liliana's Standard Bearer 1 Maul of the Skyclaves 1 Midnight Reaper 1 Murderous Rider 1 Painful Truths 1 Port Town 1 Prairie Stream 1 Promise of Loyalty 1 Pull from Tomorrow 1 Shineshadow Snarl 1 Sigiled Sword of Valeron 1 Silverwing Squadron 1 Sunken Hollow 1 Temple of Deceit 1 Temple of Enlightenment 1 Temple of Silence 1 Time Wipe 1 Unbreakable Formation 1 Valiant Knight 1 Vanquisher's Banner 1 Worthy Knight 1 Bojuka Bog 1 Command Tower 1 Commander's Sphere 1 Distant Melody 1 Evolving Wilds 1 Fractured Powerstone 1 Orzhov Signet 1 Path of Ancestry 1 Read the Bones 1 Smitten Swordmaster 1 Terramorphic Expanse 1 Thriving Heath 1 Thriving Isle 1 Thriving Moor 1 Arcane Sanctum 1 Arcane Signet 1 Arvad the Cursed 1 Corpse Knight 1 Despark 1 Fellwar Stone 1 Foulmire Knight 1 Herald's Horn 1 Knight of the Last Breath 1 Knights of the Black Rose 1 Mind Stone 1 Myriad Landscape 1 Order of Midnight 1 Path to Exile 1 Return to Dust 1 Sol Ring 1 Swords to Plowshares 1 Syr Elenora, the Discerning 1 Syr Konrad, the Grim 1 Temple of the False God 1 Wintermoor Commander 1 Xerex Strobe-Knight 8 Plains 6 Island 5 Swamp Cavalry Charge Planechase Cards Cavalry Charge Tokens 2 Knight // Spirit (white-black) tokens 2 Vampire Knight // Soldier tokens 1 Blood // Shapeshifter token 2 Zombie Knight // Human tokens 2 Knight (white-blue) // Assassin tokens 1 The Monarch // Shapeshifter token Knight // Spirit (white-black) Vampire Knight // Soldier Blood // Shapeshifter Zombie Knight // Human Knight (white-blue) // Assassin The Monarch // Shapeshifter DIVINE CONVOCATION Kasla, the Broken Halo and Saint Traft and Rem Karolus are traditional foil cards

You can tap any untapped creature you control, including one you haven't controlled continuously since the beginning of your most recent turn, to pay the cost of Selesnya Evangel's activated ability