Peaceful Coexistence — At the beginning of your end step, put a +1/+1 counter on each creature you control that didn't attack or enter the battlefield this turn. Untap those creatures.

{T}: Add {C}. {1}, {T}: Until end of turn, creatures your opponents control lose hexproof and shroud and can't have hexproof or shroud.

{T}: Add one mana of any color in your commander's color identity.

{T}: Add {C}. {4}, {T}: Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

{T}: Draw a card, then discard a card. Put a quest counter on Arcade Gannon. For Auld Lang Syne — Once during each of your turns, you may cast an artifact or Human spell from your graveyard with mana value less than or equal to the number of quest counters on Arcade Gannon.

{2}{U}, {T}: Target player draws a card, then exiles a card from their hand. If a creature card is exiled this way, that player creates a token that's a copy of that card. When Arcane Artisan leaves the battlefield, exile all tokens created with it at the beginning of the next end step.

{T}: Draw three cards. {2}{U}{U}: Return Arcanis the Omnipotent to its owner's hand.

{T}: Draw a card.

Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.) Creatures you control have "Whenever one or more counters are put on this creature for the first time each turn, draw a card."

{W}, {T}, Untap a tapped creature you control: Create a 1/1 green and white Citizen creature token. {W}{W}, {T}, Untap two tapped creatures you control: Draw a card. {W}{W}{W}{W}{W}, {T}, Untap fifteen tapped creatures you control: You win the game.

{U}, {T}: Draw two cards. {R}, {T}, Discard a card: Mercurial Chemister deals damage to target creature equal to the discarded card's mana value.

Commander creatures you own have "At the beginning of your upkeep, exile the top card of your library. This creature gets +X/+0 until end of turn, where X is that card's mana value. You may play that card this turn."

{T}: Gain control of target creature with power less than or equal to the number of creatures you control.

{1}{W}, {T}, Discard a card: Destroy target artifact or enchantment.

{T}: Counter target spell unless its controller pays {1}. Morph {U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

Flying {T}: Exchange control of two target nonlegendary creatures. You can't activate this ability during combat.

{U}{U}, {T}: Gain control of target legendary permanent. (This effect lasts indefinitely.)

Goblin Sharpshooter doesn't untap during your untap step. Whenever a creature dies, untap Goblin Sharpshooter. {T}: Goblin Sharpshooter deals 1 damage to any target.

{T}: Destroy target creature with power 4 or greater.

Flash (You may cast this spell any time you could cast an instant.) Haste {T}: Izzet Staticaster deals 1 damage to target creature and each other creature with the same name as that creature.

Haste (This creature can attack and {T} as soon as it comes under your control.) {T}: Kamahl, Pit Fighter deals 3 damage to any target.

Flying Whenever you draw a card, Niv-Mizzet, the Firemind deals 1 damage to any target. {T}: Draw a card.

{T}: Razorfin Hunter deals 1 damage to any target.

{U}, {T}: Until your next turn, target creature an opponent controls can't be blocked. Goad that creature. (Until your next turn, that creature attacks each combat if able and attacks a player other than you if able.)

{R}, {T}: Spikeshot Goblin deals damage equal to its power to any target.

Protection from red {T}: Subterranean Spirit deals 1 damage to each creature without flying.

{T}: Add one mana of any color in your commander's color identity.

When Bronze Walrus enters the battlefield, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.) {T}: Add one mana of any color.

Converge — Crystalline Crawler enters the battlefield with a +1/+1 counter on it for each color of mana spent to cast it. Remove a +1/+1 counter from Crystalline Crawler: Add one mana of any color. {T}: Put a +1/+1 counter on Crystalline Crawler.

{T}: Add {W}.

{T}: Add {R}.

{T}: Add {C}.

Flying {T}: Add one mana of any color.

{T}: Add {C}{C}.

{T}: Add one mana of any color. {1}, {T}: Untap target legendary creature you control.

{T}: Add {U}.

Equipped creature has haste. Whenever an ability of equipped creature is activated, if it isn't a mana ability, you may pay {1}. If you do, copy that ability. You may choose new targets for the copy. Equip {2}

Whenever an ability of equipped creature is activated, if it isn't a mana ability, copy that ability. You may choose new targets for the copy. Equip {3}

Equipped creature has haste and shroud. (It can't be the target of spells or abilities.) Equip {0}

{T}: Untap target artifact or creature. Morph {U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

Flying, vigilance, haste Whenever Aurelia, the Warleader attacks for the first time each turn, untap all creatures you control. After this phase, there is an additional combat phase.

Target creature becomes blue until end of turn. Untap that creature. Draw a card.

Flying Untap all creatures you control during each other player's untap step.

{T}: Untap another target permanent you control. {T}, Collect evidence 3: Tap target creature you don't control. (To collect evidence 3, exile cards with total mana value 3 or greater from your graveyard.)

Creatures don't untap during their controllers' untap steps. Whenever a creature enters the battlefield, untap all creatures.

{T}: Untap another target permanent you control. {T}: Tap target permanent. Activate only if you control eight or more lands.

Each creature you control gets +1/+0 for each time it has attacked this turn. Landfall — Whenever a land enters the battlefield under your control, if it's your main phase, there's an additional combat phase after this phase. At the beginning of that combat, untap all creatures you control.

Equipped creature gets +1/+1 and has haste. At the beginning of each combat, untap equipped creature. Equipped creature has first strike as long as it's blocking or blocked by a Goblin or Orc. Equip {2}

You may activate abilities of creatures you control as though those creatures had haste. {1}, {T}: Untap target creature.

Untap all creatures you control. Draw a card.

{T}: Untap another target permanent. Cycling {1}{U} ({1}{U}, Discard this card: Draw a card.) When you cycle Vizier of Tumbling Sands, untap target permanent.

Enchant creature Enchanted creature has "{T}: Create X 1/1 red Elemental creature tokens with haste, where X is this creature's power. Exile them at the beginning of the next end step."

Whenever you cast a spell, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

{T}: Create X 1/1 red Goblin creature tokens, where X is the number of Goblins you control.

If you would put one or more counters on a creature or planeswalker you control or on yourself, put that many plus one of each of those kinds of counters on that permanent or player instead. Choose a Background (You can have a Background as a second commander.)

Mikaeus, the Lunarch enters the battlefield with X +1/+1 counters on it. {T}: Put a +1/+1 counter on Mikaeus. {T}, Remove a +1/+1 counter from Mikaeus: Put a +1/+1 counter on each other creature you control.

Commander creatures you own have "Whenever you cast a spell from exile, this creature deals damage equal to that spell's mana value to target opponent."