Overview

This deck does lots of token generating due to drawing cards as much as possible. The tokens are just a by product of looking for our actual win cons as we cycle through the deck, dumping as much of it in the graveyard as possible. The tokens aren't really meant to do much besides be blockers and do chip damage so that the curiosity combo doesn't kill you. They're not likely to win you the game - at least in my experience. If you want to take the deck in that direction, take out some of the win con cards and put in Cathar's Crusaders, Divine Visitation, Anointed Procession and other token synergy pieces.

Win Cons

The deck has 2 kinds of win-cons.

Combo 1 - Curiosity Abused the End Step

In this combo, you attach Curiosity to either Brallin, Skyshark Rider or Glint-Horn Buccaneer. When you get to your end step, if you have 8 cards in hand, you discard a card. Those two will trigger, and do 1 damage to each opponent. Curiosity has you draw a card per opponent (assuming 3). You now have 10 cards in hand, and as you're still in the end step, you need to discard a card until you get back down to 7. You discard a card, do 3 damage to everyone, draw 3 cards. Hopefully you don't mill yourself before all of your opponents drop below 0 health. Shabraz works here as a tutor, as it's partnered with Brallin, so you cast Shabraz from your hand and go find Brallin. The other alternative to this combo is Niv-Mizzet, the Firemind, who does 1 damage each time you draw a card to 1 target. So once curiosity is on him, he will draw your entire library and you will mill yourself, doing 1 damage per card in your library. So hopefully everyone has taken chip damage before this happens!

If you want to avoid milling yourself, there's a few (expensive!) Eldrazi cards (like Kozilek, Butcher of Truth) that have "When <this card> is put into a graveyard from anywhere, its owner shuffles his or her graveyard into his or her library." That stops you from milling yourself.

If you want to make the combo more reliable, you'll want some tutors like Idyllic Tutor or Enlightened Tutor so that you can search for Curiosity. Alternatively, add in Ophidian Eye (also an enchantment) for redundancy. I'll be putting in Idyllic Tutor at some point so that I can tutor for Ephara, God of the Polis for more draw synergy/ Underworld Breach for combo 2 / Tectonic Reformation (sometimes, you just end up with a hand full of dead lands and you gotta get rid of them).

Combo 2 - Approach of the Second Sun

This combo is as simple as it gets. Cast Approach of the Second Sun, then draw cards and cycle cards like crazy so that you can do it again and win. If you have the first instance countered, it still counts as being cast, even if it didn't resolve. See below, copied from Scryfall.

As your second Approach of the Second Sun resolves, it checks only whether the first one was cast, not whether the first one resolved. If your first Approach of the Second Sun was countered, you’ll still win the game as your second one resolves.

So then you have to get it back into your hand - and we don't have any graveyard recursion in this deck (besides Mystic Sanctuary, which we can't tutor for). But we do have Underworld Breach which is an enchantment we can tutor for, and we can cast Approach from the graveyard. That won't win us the game, as it's not being cast from the graveyard, so then (assuming it too isn't being countered) it goes 7 from the top of the library, and we're kinda back at square 1. But at least we're in this with a chance again!

Deck Building Notes

If you don't have Enlightened Tutor, put in Plea For Guidance is a cheap card (under $1), though the 6 cmc is rough, but it is card advantage and a tutor. You just likely won't have the mana to do any follow-up plays to maintain tempo, and you'll go around the table with everyone knowing which two cards you tutored for.