Angelic Grace: Forest of the Faithful (Casual)

Increase your mana, summon many creatures, protect your army from attack or boost them using spells and artifacts, control the battle, summon strong angels and resurrect your fallen faithful.

If you would like to build up health and use a combo you could in fact put in multiple copies of Essence Warden, Soul Warden, Soul's Attendant and Fiend Hunter. Now for additional mana something like Selesnya Guildgate is required.

To boost your creatures you can put in other artifacts and enchantments as well. Specifically Faith Unbroken as well as Sigarda's Aid so that you are not required to pay an equip cost. Shield of the Oversoul would also be a decent addition.

In terms of angels there are already some powerful cards that provide protection, resurrecting and just plain over powered on their own. How you do this is up to you; if you really wanted you could add Bruna, the Fading Light as well as her sister Gisela, the Broken Blade. Other powerful creatures might be Dragonlord Dromoka, Karametra, God of Harvests and Nylea, God of the Hunt. Oketra the True, Heliod, God of the Sun and Rhonas the Indomitable might also help if you can make them work.

When it comes to Planeswalkers anything from Ajani, Mentor of Heroes or Ajani, Caller of the Pride to Freyalise, Llanowar's Fury and Nissa, Sage Animist or Nissa, Nature's Artisan or Nissa, Worldwaker or Nissa, Vital Force or Nissa, Voice of Zendikar to any Elspeth card and any Gideon would be useful to throw in.