REMOVAL:
Reprisal takes care of most big threats.
Crippling Chill taps important fatties and abilities to stall for a turn and replaces itself. Definitely don't underestimate it.
Arc Lightning Such a great card that they had to reprint it. The strength is in the choice of what you hit with it. Clears tokens nicely.
Arcbond You can pull off some nice tricks with this card. Clears boards for 3 cc and is a budget option over end hostilities. One of since it is harder to use.
Jeskai Charm Kills planeswalkers, kills tokens, delays creatures and stalls your opponent, burns the opponent, is a combat trick . . . what else do you need?!
Lightning Strike Currently one of the best burn spells in standard. Four of.
Magma Jet Won't kill as many things as Lightning Strike , but it shuts down aggro and set you up.
STALLS:
Deflecting Palm is amazing at stalling against tempo decks and buff decks. Essentially taps a creature and burns your opponent. Great for finishing people when they least expect it.
Steam Augury Four of to quickly fill your hand with cards and cycle through your library. EXTREMELY useful.
Jace's Ingenuity You are not going to want to run more than one, but when you draw it, and you will - oh boy.
Jeskai Barricade Blocks early game 2/1s all day, has flash and saves your creatures. It's great.
Resolute Archangel Top-deck hero and your savior.
Prognostic Sphinx Has hexproof and scrys 3 every turn. Also has a big butt and blocks all day.
Seeker of the Way Typically used in aggro decks, but the life gain is insane, so is worthy of a place in this deck.
FINISHERS:
Narset, Enlightened Master