One is as though nothing is a miracle
Dark Impostor Dark Impostor exiles creatures and steals their activated abilities
Id prefer to have a stack of the basic versions, as compares to the fancier EA and FEA, but you do what works for you
Thats especially true because Delighted Halfling can also be tapped for one mana of any colour, as long as that mana is being used to cast a legendary spell
The deck features enter the battlefield triggers including graveyard hate (Angel of Finality), Bolster (Anafenza), artifact/enchantment removal (Angel of the Ruins), creature tokens (Blade Splicer, Emeria Angel, Regal Caracal), flicker (Charming Prince, Restoration Angel, Flickerwisp), reanimate (Emeria Shepherd, Karmic Guide, Sun Titan), venture (Nadaar, Radiant Solar), fetch (Solemn Simulacrum, Ambitious Farmhand), creature removal, life gain, and much much more
How it works, what set it debuted in, if its evergreen, and what the best cards are featuring it, answers to some complex rules questions, and more