When Abdel Adrian, Gorion's Ward enters the battlefield, exile any number of other nonland permanents you control until Abdel Adrian leaves the battlefield. Create a 1/1 white Soldier creature token for each permanent exiled this way.

Choose a Background (You can have a Background as a second commander.)

When Alpine Guide enters the battlefield, you may search your library for a Mountain card, put that card onto the battlefield tapped, then shuffle.

Alpine Guide attacks each combat if able.

When Alpine Guide leaves the battlefield, sacrifice a Mountain.

Flying

Vanishing 3 (This creature enters the battlefield with three time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)

When Aven Riftwatcher enters or leaves the battlefield, you gain 2 life.

When Bilbo, Retired Burglar enters or leaves the battlefield, the Ring tempts you.

Whenever Bilbo deals combat damage to a player, create a Treasure token.

When Brandywine Farmer enters or leaves the battlefield, create a Food token. (It's an artifact with ", , Sacrifice this artifact: You gain 3 life.")

Changeling (This card is every creature type.)

Champion a creature (When this enters the battlefield, sacrifice it unless you exile another creature you control. When this leaves the battlefield, that card returns to the battlefield.)

Lifelink (Damage dealt by this creature also causes you to gain that much life.)

When Circuit Mender enters the battlefield, you gain 2 life.

When Circuit Mender leaves the battlefield, draw a card.

Renown 2 (When this creature deals combat damage to a player, if it isn't renowned, put two +1/+1 counters on it and it becomes renowned.)

Whenever one or more +1/+1 counters are put on Constable of the Realm, exile up to one other target nonland permanent until Constable of the Realm leaves the battlefield.

Vanishing 3 (This creature enters the battlefield with three time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)

When Deadwood Treefolk enters or leaves the battlefield, return another target creature card from your graveyard to your hand.

When Faceless Butcher enters the battlefield, exile another target creature.

When Faceless Butcher leaves the battlefield, return the exiled card to the battlefield under its owner's control.

When Fairgrounds Warden enters the battlefield, exile target creature an opponent controls until Fairgrounds Warden leaves the battlefield.

Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)

When Firemaw Kavu enters the battlefield, it deals 2 damage to target creature.

When Firemaw Kavu leaves the battlefield, it deals 4 damage to target creature.

Defender

When Floodgate has flying, sacrifice it.

When Floodgate leaves the battlefield, it deals damage to each nonblue creature without flying equal to half the number of Islands you control, rounded down.

When Goblin Firebug leaves the battlefield, sacrifice a land.

When Gravegouger enters the battlefield, exile up to two target cards from a single graveyard.

When Gravegouger leaves the battlefield, return the exiled cards to their owner's graveyard.

Menace

When Horned Stoneseeker enters the battlefield, create a tapped Powerstone token. (It's an artifact with ": Add . This mana can't be spent to cast a nonartifact spell.")

When Horned Stoneseeker leaves the battlefield, sacrifice a Powerstone.

Vanishing 2 (This creature enters the battlefield with two time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)

When Keldon Marauders enters or leaves the battlefield, it deals 1 damage to target player or planeswalker.

: Target creature gets +2/+2 until end of turn. When that creature leaves the battlefield this turn, sacrifice Kjeldoran Elite Guard. Activate only during combat.

When Lagrella, the Magpie enters the battlefield, exile any number of other target creatures controlled by different players until Lagrella leaves the battlefield. When an exiled card enters the battlefield under your control this way, put two +1/+1 counters on it.

Flying

Whenever another creature you control leaves the battlefield, you gain 1 life.

If Luminous Phantom would be put into a graveyard from anywhere, exile it instead.

When Meadowboon leaves the battlefield, put a +1/+1 counter on each creature target player controls.

Evoke (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters the battlefield.)

Whenever a token you control leaves the battlefield, put a +1/+1 counter on Nadier, Agent of the Duskenel.

When Nadier leaves the battlefield, create a number of 1/1 green Elf Warrior creature tokens equal to its power.

Partner (You can have two commanders if both have partner.)

Flying

When Nevermaker leaves the battlefield, put target nonland permanent on top of its owner's library.

Evoke (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters the battlefield.)

Flash

When Offalsnout leaves the battlefield, exile target card from a graveyard.

Evoke (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters the battlefield.)

When Petravark enters the battlefield, exile target land.

When Petravark leaves the battlefield, return the exiled card to the battlefield under its owner's control.

When Phyrexian Bloodstock leaves the battlefield, destroy target white creature. It can't be regenerated.

When Raving Oni-Slave enters or leaves the battlefield, you lose 3 life if you don't control a Demon.

When Sengir Autocrat enters the battlefield, create three 0/1 black Serf creature tokens.

When Sengir Autocrat leaves the battlefield, exile all Serf tokens.

Vigilance

When Shire Shirriff enters the battlefield, you may sacrifice a token. When you do, exile target creature an opponent controls until Shire Shirriff leaves the battlefield.

Whenever another artifact you control enters or leaves the battlefield, you may pay . If you do, target player loses 1 life and you gain 1 life.

Flying

When Soul Scourge enters the battlefield, target player loses 3 life.

When Soul Scourge leaves the battlefield, that player gains 3 life.

When Spellgorger Barbarian enters the battlefield, discard a card at random.

When Spellgorger Barbarian leaves the battlefield, draw a card.

When CARDNAME enters the battlefield, gain control of target creature an opponent controls until CARDNAME leaves the battlefield or that player pays the ransom.

Ransom — and 2 life

Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)

When Subterranean Shambler enters or leaves the battlefield, it deals 1 damage to each creature without flying.

When Tidehollow Sculler enters the battlefield, target opponent reveals their hand and you choose a nonland card from it. Exile that card.

When Tidehollow Sculler leaves the battlefield, return the exiled card to its owner's hand.

Flying

When Vesperlark leaves the battlefield, return target creature card with power 1 or less from your graveyard to the battlefield.

Evoke (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters the battlefield.)

Hideaway 4 (When this creature enters the battlefield, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.)

Watcher for Tomorrow enters the battlefield tapped.

When Watcher for Tomorrow leaves the battlefield, put the exiled card into its owner's hand.

Flying

When Wormfang Drake enters the battlefield, sacrifice it unless you exile a creature you control other than Wormfang Drake.

When Wormfang Drake leaves the battlefield, return the exiled card to the battlefield under its owner's control.

When Wormfang Turtle enters the battlefield, exile a land you control.

When Wormfang Turtle leaves the battlefield, return the exiled card to the battlefield under its owner's control.