First strike, menace, trample Partner (You can have two commanders if both have partner.)

{T}, Pay 1 life, Sacrifice this land: Search your library for a Mountain or Plains card, put it onto the battlefield, then shuffle.

({T}: Add {B} or {R}.) As this land enters, you may pay 2 life. If you don't, it enters tapped.

{T}, Pay 1 life, Sacrifice this land: Search your library for a Swamp or Mountain card, put it onto the battlefield, then shuffle.

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

This land enters tapped. {T}: Add {U}, {B}, or {R}.

{T}, Pay 1 life, Sacrifice this land: Search your library for a Plains or Island card, put it onto the battlefield, then shuffle.

{T}, Pay 1 life, Sacrifice this land: Search your library for a Plains or Swamp card, put it onto the battlefield, then shuffle.

{T}, Pay 1 life, Sacrifice this land: Search your library for a Forest or Island card, put it onto the battlefield, then shuffle.

{T}, Pay 1 life, Sacrifice this land: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle.

{T}, Pay 1 life, Sacrifice this land: Search your library for an Island or Mountain card, put it onto the battlefield, then shuffle.

({T}: Add {U} or {R}.) As this land enters, you may pay 2 life. If you don't, it enters tapped.

Each land is a Swamp in addition to its other land types.

{T}, Pay 1 life, Sacrifice this land: Search your library for a Swamp or Forest card, put it onto the battlefield, then shuffle.

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

Add {B}{B}{B}.

{2}, {T}: You gain 5 life. Shuffle this artifact and your graveyard into their owner's library.

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.) Choose target card in a graveyard other than a basic land card. Search its owner's graveyard, hand, and library for all cards with the same name as that card and exile them. Then that player shuffles.

Search your library for a card, put that card into your hand, discard a card at random, then shuffle.

Search your library for an instant or sorcery card, reveal it, then shuffle and put that card on top.

Suspend 2—{1}{B} (Rather than cast this card from your hand, pay {1}{B} and exile it with two time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost.) Search your library for a card, put that card into your hand, then shuffle.

Exile this card from your hand: Add {R}.

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

{T}, Tap an untapped creature you control: Add one mana of any color.

At the beginning of each player's draw step, that player puts the cards in their hand on the bottom of their library in any order, then draws that many cards.

Counter target noncreature spell. Its controller creates two Treasure tokens. (They're artifacts with "{T}, Sacrifice this token: Add one mana of any color.")

As an additional cost to cast this spell, sacrifice a creature. Draw two cards.

Counter target spell.

Crackle with Power deals five times X damage to each of up to X targets.

{T}, Sacrifice this artifact: The next time a source of your choice would deal damage to you this turn, prevent half that damage, rounded down.

Untap all nonland permanents you control.

Electrodominance deals X damage to any target. You may cast a spell with mana value X or less from your hand without paying its mana cost.

Imprint — When this artifact enters, 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.

Lightning Bolt deals 3 damage to any target.

Equipped creature gets +1/+0 and has trample. {2}{R}, Sacrifice this Equipment: It deals 3 damage to any target. Equip {1}

{2}, {T}: Copy target activated or triggered ability you control. You may choose new targets for the copy. {3}, {T}: Copy target instant or sorcery spell you control. You may choose new targets for the copy. {4}, {T}: Copy target permanent spell you control. (The copy becomes a token.)

Equipped creature gets +1/-1. Whenever equipped creature dies, draw two cards. Equip {1}

Equipped creature has "{T}: This creature deals 1 damage to target player or planeswalker. If this creature is a Wizard, it deals 2 damage instead." Equip {3}

As an additional cost to cast this spell, sacrifice a creature. Draw two cards.

{1}, {T}: Untap target artifact.