A predominantly white, W/B token deck based mainly on spirits.
The majority of tokens in this deck will be White 1/1 Spirits, with the less common tokens being either 1/1 White Soldiers, or 1/1 Black and White 1/1 Spirits. At any rate, they will all benefit from Honor of the Pure + Intangible Virtue, which lets your token get rather intimidating.
Doomed Traveler + Beckon Apparition will be your main source of early game aggression and protection, and they both happen to synergize rather well together. The doomed traveler is an amazing chump blocker and early game attacker; if you use it as a chump blocker, you end up blocking damage, and then get a creature of the same power, but with flying afterwards. When it attacks, people will have to take a decision; let it pass, or block it, which almost inevitably will end with your Traveler being killed, and, ultimately, give it flying. Beckon Apparition lets you exile any spell after it was cast, including your own, to get a token. This helps against those pesky zombies and flashback, but it also synergizes with the Traveler; get it killed, put a spirit in its place, then exile it from your graveyard, get another spirit.
As the game progresses, you'll be using Spectral Procession and Lingering Souls in the mid-game for tokens, and Twilight Drover as a lord of sorts. Twilight Drover lets you send your tokens recklessly to get more token afterwards, making losing tokens basically a non-issue. Lingering Souls is amazing, considering you get 4 tokens from a single card, with a total of 5 CMC. It's an obvious card advantage. Spectral Procession is a decent card; at its best, you get three tokens for three CMC.
Pillory of the Sleepless and Unmake will be your main source of control. Removing a creature from the game can screw someone's game up really bad, while Pillory of the sleepless is basically a Pacifism that leaves your opponents rotting over time, making the extra 1 CMC definitively worth it. If, however, you absolutely need to keep a creature from using abilities, then One Thousand Lashes is what you want. It's to Arrest what the Pillory is to Pacifism. Since it's one more CMC to the pillory, I keep it in the side, so that you can swap the two when needed. Finally, if it's not creatures that are the problem, then you can also swap those cards for some oblivion rings.
Finally, the killers: Elspeth, Knight-Errant, Teysa, Envoy of Ghosts, and Vault of the Archangel. Elspeth is a no-brainer. It's a staple card in almost any modern token deck, and while it doesn't give us spirits, it gives us white tokens, so there's just no reason not to want it in our deck. Teysa, Envoy of Ghosts is your other killers. It gives us spirits, so it works in this deck, and the effect it will have on the battlefield is clear. It is both an unblockable hitter that can hit every turn, then simultaneously can block anything without taking damage. And, it lets you decide to willingly let some damage pass to destroy creatures, and get a token. Finally, Vault of the Archangel is a pretty awesome card, giving your plentyful of tokens both lifelink and death touch, and it fits in the deck's colours.
Finally, I keep a few Elixirs in my sideboards to deal with millers.
