Commander creatures you own have "When this creature enters or leaves the battlefield, draw a card."

Imprint — When Isochron Scepter enters the battlefield, you may exile an instant card with mana value 2 or less from your hand. {2}, {T}: You may copy the exiled card. If you do, you may cast the copy without paying its mana cost.

Defender Whenever you cast an instant or sorcery spell, you may draw a card. If you do, discard a card. This ability triggers only once each turn.

Magecraft — Whenever you cast or copy an instant or sorcery spell, draw a card.

Whenever you discard a card, you may exile that card from your graveyard. If you do, you may play that card this turn.

Draw a card. Until end of turn, target creature gains trample and gets +1/+0 for each card you've drawn this turn.

As an additional cost to cast this spell, sacrifice a creature. Fling deals damage equal to the sacrificed creature's power to any target.

Draw a card. Madness {U} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Cliffgate enters the battlefield tapped. As Cliffgate enters the battlefield, choose a color other than red. {T}: Add {R} or one mana of the chosen color.

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

Gates you control enter the battlefield untapped. {T}: Add {C}. {T}: Add one mana of any color that a Gate you control could produce.

Up to two target creatures each get +1/+0 and gain first strike until end of turn. Madness {1}{R} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Choose one — • Abrade deals 3 damage to target creature. • Destroy target artifact.

Haste Whenever Amber Gristle O'Maul attacks, you may discard your hand. If you do, draw a card for each player being attacked. Choose a Background (You can have a Background as a second commander.)

One or two target creatures each gain haste until end of turn. For each of those creatures, create a Monster Role token attached to it. (If you control another Role on it, put that one into the graveyard. Enchanted creature gets +1/+1 and has trample.)

When Bitter Reunion enters the battlefield, you may discard a card. If you do, draw two cards. {1}, Sacrifice Bitter Reunion: Creatures you control gain haste until end of turn.

{R}: Blazing Rootwalla gets +2/+0 until end of turn. Activate only once each turn. Madness {0} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Equipped creature gets +1/+0 and has haste. Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Up to two target creatures each get +2/+0 and gain haste until end of turn.

{T}: Add {C}. {U/R}, {T}: Add {U}{U}, {U}{R}, or {R}{R}.

As an additional cost to cast this spell, discard two cards. Draw three cards.

Discard your hand, then draw a card for each card you've discarded this turn.

At the beginning of your upkeep, return an instant or sorcery card at random from your graveyard to your hand. Whenever you cast an instant or sorcery spell, Charmbreaker Devils gets +4/+0 until end of turn.

Tap up to two target creatures. Those creatures don't untap during their controller's next untap step. Madness {3}{U} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Whenever Conspiracy Theorist attacks, you may pay {1} and discard a card. If you do, draw a card. Whenever you discard one or more nonland cards, you may exile one of them from your graveyard. If you do, you may cast it this turn.

Target creature gets +2/+2 and gains trample until end of turn. Madness {R} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

{2}{U}, {T}, Discard a card, Sacrifice a land: Search your library for up to two basic land cards, put them onto the battlefield, then shuffle.

If Faceless One is your commander, choose a color before the game begins. Faceless One is the chosen color. Choose a Background (You can have a Background as a second commander.)

Draw two cards, then discard two cards. Flashback {2}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Discard a card, then draw a card. Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)

Whenever you cast an instant or sorcery spell, Festival Crasher gets +2/+0 until end of turn.

Equipped creature gets +2/+0 and has reach. Whenever equipped creature is dealt damage, it deals damage equal to its power to target player or planeswalker. Equip {2}{R}

Fiery Temper deals 3 damage to any target. Madness {R} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Menace Whenever you cycle or discard a card, Flameblade Adept gets +1/+0 until end of turn.

Return target creature to its owner's hand. Ferocious — If you control a creature with power 4 or greater, you may draw a card. If you do, discard a card.

Trample At the beginning of combat on your turn, you may discard a card. If you do, Furyblade Vampire gets +3/+0 until end of turn.

Kicker {2}{U} (You may pay an additional {2}{U} as you cast this spell.) When Ghitu Amplifier enters the battlefield, if it was kicked, return target creature an opponent controls to its owner's hand. Whenever you cast an instant or sorcery spell, Ghitu Amplifier gets +2/+0 until end of turn.

Haste Whenever you discard a card, Glint-Horn Buccaneer deals 1 damage to each opponent. {1}{R}, Discard a card: Draw a card. Activate only if Glint-Horn Buccaneer is attacking.

Instant and sorcery spells you cast cost {1} less to cast.

Tap target creature. Scry 1. Draw a card.

({T}: Add {U}.)

Return target creature to its owner's hand. Madness {U} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

As an additional cost to cast this spell, discard a card or pay {5}. Lightning Axe deals 5 damage to target creature.

Lightning Bolt deals 3 damage to any target.

Whenever you cast a noncreature spell, target creature gets +X/+0 until end of turn, where X is that spell's mana value. Choose a Background (You can have a Background as a second commander.)

Spells you cast cost {1} less to cast for each card with the same name as that spell in your graveyard.

Counter target spell. At the beginning of your next main phase, add an amount of {C} equal to that spell's mana value.

({T}: Add {R}.)

At the beginning of your upkeep, scry 1. Whenever you discard a card, each opponent mills two cards. (They put the top two cards of their library into their graveyard.)

Look at the top two cards of your library. Put one of them into your hand and the other into your graveyard. Madness {1}{U} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Defender Whenever you cast an instant or sorcery spell, Nivix Cyclops gets +3/+0 until end of turn and can attack this turn as though it didn't have defender.

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."

Exile target artifact or creature, then return it to the battlefield under its owner's control with a +1/+1 counter on it.

Return target creature to its owner's hand. If you've discarded a card this turn, draw a card.

Rielle, the Everwise gets +1/+0 for each instant and sorcery card in your graveyard. Whenever you discard one or more cards for the first time each turn, draw that many cards.

Add {R}{R}, then add {R} for each card named Rite of Flame in each graveyard.

Enchant creature Enchanted creature gets +2/+2. Madness {1}{R} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Commander creatures you own have "{2}{U}: This creature becomes a copy of another target creature."

Target creature you control deals damage equal to its power to any target.

At the beginning of your upkeep, you may return Squee, Goblin Nabob from your graveyard to your hand.

Attacking creatures you control have first strike. Whenever a Vampire you control deals combat damage to a player, put a +1/+1 counter on it. Madness {2}{R} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Commander creatures you own have "Whenever this creature attacks a player, if no opponent has more life than that player, this creature can't be blocked this turn."

Discard all the cards in your hand, then draw that many cards.

Vigilance {T}: Add an amount of {C} equal to Vhal, Candlekeep Researcher's toughness. This mana can't be spent to cast spells from your hand. Choose a Background (You can have a Background as a second commander.)

({T}: Add {U} or {R}.)