Deck list inspired from AliceBlk's knight deck here: http://www.mtgdeckbuilder.net/Decks/ViewDeck/knight-exemplar-combo-209033
Knight Exemplar
and
Kinsbaile Cavalier
are your main mofos, if you have both of them out well the opponent is screwed because all your creatures have double-strike and indestructable. Swarm the enemy while he's too busy mana ramping some hydra with all these low cmc killers. You got
Knight Exemplar
out and things are getting too sketchy? Just drop Wrath of God and you might as well change the text to "Destroy all opponents creatures they can't be regenerated". Things still getting trippy? Show the opponent how holy you are with Angel's Grace and you'll live another turn.
I'm still not sure if Near-Death Experience or
Emeria, The Sky Ruin
are necessary, but i need to play some worthy opponents to find out. I might replace them with two Ajani Steadfast, Elspeth Tirel or maybe Heliod, God of the Sun. Those guys (and a girl) are baller in this deck. Maybe Gideon.
Pros
-The Knight Exemplar
+
Wrath of God
combo can be effective in any situation you feel overwhelmed in.
-The highest CMC for creatures is 4, and 5 for the whole deck so getting out all the various 2 easily drops can be threatening.
-The planeswalkers fit great with the strategy.
-White, IMO, has the best core abilities (vigilance, lifelink, first strike, protection, etc.)
Cons
-If exemplar or cavalier are destroyed, it is pretty much a bad white weenie deck since there are only knights.
-Only two creature removal spells, but this isn't a huge con since my knights usually don't run into any battlefield problems
-Things like discard can be threatening unless Emeria is fully plained up.