Goal is to make all opponents libraries be zero. This deck is designed with multi-player games in mind.
Howling Mine, Temple Bell, Mikokoro, Center of the Sea, Arcane Denial, and Jace Beleren force each player to draw several cards per turn, to the point that they are required to discard cards almost every turn. Depending on the players, this can have the effect of players not wanting to attack you in the early game so they can continue to draw extra cards. Until its too late. These cards tend to snowball very fast. Once you have one or two in place, you will quickly draw to more and the drawing will get out of control! Temple Bell allows you to trigger the draw whenever you like, increasing your options in multiplayer games. It also makes an infinite combo with Mind Over Matter that will instantly win you the game.
Crack Elixir of Immortality as often as possible to gain 5 life and stay in the game, but more importantly so you have a library of cards whereas your opponents do not. The smaller your library gets, the more counterspells and Elixirs that you'll run into because they are constantly being shuffled back into the library, unlike your permanent spells that stay on the battlefield to thin out your deck. Alhammarret's Archive doubles the life gain to 10 per trigger, which can get out of control pretty quickly.
Propaganda to discourage your opponents from attacking you and Chasm Skulker to passively grow until someone decides to remove him, or you're ready to sacrifice him to Miren, the Moaning Well and gain a bunch of life and 1/1 tokens. Stormtide Leviathan for funsies, and because he synergies so well with the rest of the deck. Makes our 1/1 tokens unblockable to all players and prevents most things but us from attacking.
Toothy, Imaginary Friend can also be used as a win-con once he gets big enough or once you have enough Psychic Corrosions in play. Sac him or play another, draw a dozen or more cards and make your opponents mill 2-8x that amount. This combo is often how we finish out games if our opponents have an answer to slow mill or our 1/1 tokens.
Mind Over Matter + Mikokoro, Center of the Sea + a Cloudpost that taps for at least 2 mana lets you draw a whole lot of cards per turn, as you draw a card for every one you discard. Throw Alhammarret's Archive in the mix and it becomes an infinite combo, as you draw two cards for every one you discard and you can crack Elixir of Immortality once your library starts to get low, since you aren't locked into infinite activation of the combo. Often, just getting the first two pieces into play provides enough draw to draw into Alhammarret's Archive, so it makes it a pretty consistent little combo.
If toward the end of the game you start accumulating too many cards in hand, Mind Over Matter serves as a way to put cards in your hand into your graveyard so they can be shuffled back into your library with Elixir of Immortality, which really plays out its namesake in this deck.It is also great at delaying the game, stopping attackers, etc. It allows us to untap Miren, the Moaning Well for multiple sacs, Mikokoro, Center of the Sea to draw multiple cards, or Cloudpost to make more plays in a single turn. Speaking of making a lot of plays in a single turn, Omniscience is just absolutely bonkers here. We can fairly easily have the mana to play this card by turn 6. By then, we're drawing more than one card per turn and we can play absolutely everything we draw. Talk about value!
Alhammarret's Archive doubles the triggers for Toothy, Imaginary Friend, Chasm Skulker, and Psychic Corrosion. It's also completely colorless, making it very easy to cast with Cloudpost. Doubles the life gain from Elixir of Immortality, Glimmerpost, and Miren, the Moaning Well. Overall, this card just advances what we're trying to do in a very quick and drastic way.
The goal of this deck is to have fun. Its meant to be a casual multi-player deck that just happens to conform to the Legacy ban list; but it wrecks face at the kitchen table with a group of good friends. Sometimes the extra draw will force your friends to combo out faster (that's what counter spells are for anyways), but one thing it always does is makes for a fun multiplayer game.
