As an additional cost to cast this spell, sacrifice a creature. Create X 1/1 black and green Pest creature tokens with "When this token dies, you gain 1 life," where X is the sacrificed creature's power.

At the beginning of your upkeep, you may mill a card. Delirium — {2}{G}, Sacrifice this enchantment: Return up to one target creature card and up to one target land card from your graveyard to your hand. Activate only if there are four or more card types among cards in your graveyard.

Flying At the beginning of combat on your turn, each player mills three cards.

Reach At the beginning of your upkeep, mill two cards. (Put the top two cards of your library into your graveyard.) {1}{B}{G}, Exile this creature: Return target card from your graveyard to your hand.

Delirium — This creature can't attack or block unless there are four or more card types among cards in your graveyard. At the beginning of your upkeep, you may mill a card. (You may put the top card of your library into your graveyard.)

As an additional cost to cast this spell, sacrifice a creature. Search your library for a card, put that card into your hand, then shuffle.

Delirium — Whenever this creature enters or attacks, if there are four or more card types among cards in your graveyard, distribute two +1/+1 counters among one or two target creatures. Then if there are six or more card types among cards in your graveyard, double the number of +1/+1 counters on those creatures.

Lifelink Delirium — At the beginning of your end step, if there are four or more card types among cards in your graveyard, each opponent may sacrifice a nonland permanent of their choice or discard a card. Then this creature deals damage equal to its power to each opponent who didn't sacrifice a permanent or discard a card this way.

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

{3}, Sacrifice this creature: Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.

As an additional cost to cast this spell, sacrifice a land. Search your library for a land card, put that card onto the battlefield, then shuffle.

As an additional cost to cast this spell, sacrifice a land. Search your library for up to two basic land cards, put them onto the battlefield, then shuffle.

{T}, Mill a card: Add {C}. (To mill a card, put the top card of your library into your graveyard.)

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

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

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

As an additional cost to cast this spell, sacrifice an artifact or creature. Draw two cards and create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

Whenever you cast a noncreature spell, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.) Delirium — As long as there are four or more card types among cards in your graveyard, this creature gets +2/+2, has flying, and attacks each combat if able.

At the beginning of your end step, you may pay {2}{R} and sacrifice a nonland permanent. If you do, reveal cards from the top of your library until you reveal a nonland permanent card. Put that card onto the battlefield and the rest on the bottom of your library in a random order.

When this creature enters, discard a card, then draw a card. Delirium — Whenever this creature attacks for the first time each turn, if there are four or more card types among cards in your graveyard, untap target creature. After this phase, there is an additional combat phase.

As an additional cost to cast this spell, pay {4} or sacrifice an artifact or creature. Destroy target creature or planeswalker.

As an additional cost to cast this spell, sacrifice a creature or discard a card. Destroy target creature or planeswalker.

Destroy up to one target artifact, up to one target creature, and up to one target enchantment. Delirium — Then if there are four or more card types among cards in your graveyard, create an X/X green Ooze creature token, where X is the total mana value of permanents destroyed this way.

Constellation — Whenever this creature or another enchantment you control enters, creatures your opponents control get -1/-1 until end of turn.

Delirium — This spell costs {2} less to cast as long as there are four or more card types among cards in your graveyard. Destroy target nonland permanent.

As an additional cost to cast this spell, sacrifice a creature or pay {3}{B}. Exile target creature or planeswalker.

Flash Reach When this creature enters, up to one target player puts all the cards from their graveyard on the bottom of their library in a random order. Evoke—Exile a green card from your hand.

Trample, haste Delirium — Whenever this creature attacks, if there are four or more card types among cards in your graveyard, other attacking creatures get +4/+4 until end of turn.

Choose target creature you control and target creature an opponent controls. Delirium — If there are four or more card types among cards in your graveyard, put two +1/+1 counters on the creature you control. The creature you control deals damage equal to its power to the creature an opponent controls.