Odds and Ends Commander Deck Upgrade Guide

Yavimaya, Cradle of Growth makes every land a Forest in addition to its other types. In a white-blue-black deck there is nothing green to spend that mana on, and it helps opponents' mana too.

Halimar Depths enters tapped and taps for {U}. When it enters you look at the top three cards of your library and put them back in any order, which sets up the card Yennett will reveal.

Time Stop costs {4}{U}{U} to end the turn. It is a six-mana card with no way to win a game, and it is not a card Yennett decks usually play.

Brainsurge costs {2}{U} at instant speed: draw four cards, then put two cards from your hand on top of your library. A three-mana spell is an odd mana value, so Yennett can cast it for free.

Inniaz is a 4/4 flier for {3}{U}{U}. His ability gives attacking fliers +1/+1 for {2}{W/U}, and when three or more fliers attack, each player gains control of a nonland permanent you choose from the player to their right. It is not a card Yennett decks usually play.

Prognostic Sphinx is a 3/5 flying Sphinx for {3}{U}{U}. Whenever it attacks you scry 3, and you can discard a card to give it hexproof until end of turn. It is a five-mana flier that sets up the top of your library.

Jeskai Infiltrator is a three-mana creature that can't be blocked as long as you control no other creatures, which is almost never true with Yennett on the table. It is not a card Yennett decks usually play.

Hidetsugu and Kairi is a 5/4 flier for {2}{U}{U}{B}. When it enters you draw three cards and put two back on top of your library, and when it dies you exile the top card, an opponent loses life equal to its mana value, and you may cast it if it is an instant or sorcery.

Aeon Engine costs five, enters tapped, and exiles itself to reverse the turn order. It is played in about one Yennett deck in sixteen.

Dream Cache costs {2}{U}: draw three cards, then put two cards from your hand on top of your library or on the bottom. At three mana it is an odd mana value, so Yennett can cast it free.

Planeswalker's Mischief lets you pay {3}{U} at sorcery speed to cast a random instant or sorcery from an opponent's hand. It is slow and it is played in about one Yennett deck in sixteen.

Portent costs {U}: look at the top three cards of a player's library and put them back in any order, and you draw a card at the beginning of the next turn's upkeep. A one-mana spell is an odd mana value, so Yennett can cast it for free, and it sets up her next reveal.

Shared Fate costs five and makes every player exile cards from their opponents' libraries instead of drawing, which takes away your own card flow.

Crystal Ball costs {3} and lets you scry 2 for {1} and a tap each turn. That is repeatable control over the top card, so Yennett's reveal hits more often.

Chaos Wand costs {3} and then {4} and a tap to cast a random instant or sorcery from an opponent's library. It is played in about one Yennett deck in twelve.

Thryx, the Sudden Storm is a 4/5 flier with flash for {3}{U}{U}. Spells you cast with mana value 5 or greater cost {1} less and can't be countered. That includes Enigma Sphinx and the deck's other big spells.

Venser's Journal costs five and gives you no maximum hand size and life each upkeep for each card in your hand. It does not interact with the table.

Void Rend costs {W}{U}{B}: destroy target nonland permanent, and it can't be countered. It is an answer to nearly anything, and its three-mana cost is odd, so Yennett can cast it free.

Exchange of Words exchanges the text boxes of two creatures for as long as it stays on the battlefield. It is a chaos card, played in about one Yennett deck in ten.

Mortify costs {1}{W}{B} at instant speed and destroys a creature or enchantment. A clean answer in two of your colours.

Psychic Battle costs five and turns every target into a reveal contest. It is played in about one Yennett deck in ten and has little to do with Yennett.

Scholar of the Lost Trove is a seven-mana flier. When it enters you may cast an instant, sorcery or artifact card from your graveyard without paying its mana cost, so it replays Brainstorm, Void Rend or a Talisman, and its seven mana is odd, so Yennett can cast it from the top of the library.

Leadership Vacuum returns a player's commanders from the battlefield to the command zone and draws you a card. It is a niche card in a multiplayer game.

Path to Exile costs {W} and exiles any creature, at instant speed. A one-mana spell is an odd mana value, so Yennett can also cast it for free off the top of the library.

Nadir Kraken ({1}{U}{U}) is not a card Yennett decks usually play. It reads: Whenever you draw a card, you may pay {1}. If you do, put a +1/+1 counter on this creature and create a 1/1 blue Tentacle creature token.

In Garruk's Wake ({7}{B}{B}) scores 56: it is in 56% of Yennett decks with 55% synergy. It reads: Destroy all creatures you don't control and all planeswalkers you don't control.

Space Beleren ({2}{W}{U}) is not a card Yennett decks usually play. It reads: Space sculptor. +1: Creatures in each sector can be blocked this turn only by creatures in the same sector.

Magister Sphinx ({4}{W}{U}{B}) scores 53: it is in 56% of Yennett decks with 52% synergy. It reads: Flying. When this creature enters, target player's life total becomes 10.

Talisman of Progress ({2}) is one of the lowest-scoring cards in the precon, at 9 in the Oracle: it is in 37% of Yennett decks with -9% synergy. It reads: {T}: Add {C}. {T}: Add {W} or {U}. This artifact deals 1 damage to you.

Aqueous Form ({U}) scores 37: it is in 39% of Yennett decks with 35% synergy. It reads: Enchant creature. Enchanted creature can't be blocked. Whenever enchanted creature attacks, scry 1.

Skyclave Apparition ({1}{W}{W}) is one of the lowest-scoring cards in the precon, at 12 in the Oracle: it is in 12% of Yennett decks with 11% synergy. It reads: When this creature enters, exile up to one target nonland, nontoken permanent you don't control with mana value 4 or less.

The Ur-Sphinx ({6}{W}{U}{B}) scores 36: it is in 38% of Yennett decks with 36% synergy. It reads: Eminence : As long as The Ur-Sphinx is in the command zone or on the battlefield, other Sphinx spells you cast cost {1} less to cast. Flying. Whenever one or more Sphinxes you control attack, each player mills that many cards.