As an additional cost to cast this spell, sacrifice a creature.
Add .

Chain Lightning deals 3 damage to any target. Then that player or that permanent's controller may pay . If the player does, they may copy this spell and may choose a new target for that copy.

Draw a card if an opponent has cast a blue or black spell this turn. Spells you control can't be countered this turn. You and permanents you control gain hexproof from blue and from black until end of turn. (You and they can't be the targets of blue or black spells or abilities your opponents control.)

Creatures you control gain trample until end of turn. (Each of those creatures can deal excess combat damage to the player or planeswalker it's attacking.)
Draw a card.

Changeling (This card is every creature type.)
This creature can't block and can't be blocked.

, Sacrifice a creature: Create a Food token. If the sacrificed creature's toughness was 4 or greater, create two Food tokens instead. (They're artifacts with ", , Sacrifice this token: You gain 3 life.")

Whenever this creature deals damage to a player, you may put a Goblin permanent card from your hand onto the battlefield.

Target creature gets -1/-1 until end of turn for each Swamp you control.

Enchant land
When this Aura enters, draw a card.
Enchanted land has ": Add one mana of any color."

, Sacrifice a Forest: Add three mana in any combination of and/or .

, : Target creature you control fights another target creature.

You may cast Aura and Equipment spells as though they had flash.
Whenever an Equipment you control enters, you may attach it to target creature you control.

Look at the top three cards of your library, then put them back in any order. You may shuffle.
Draw a card.

Destroy target creature if it has mana value 2 or less.
Revolt — Destroy that creature if it has mana value 4 or less instead if a permanent left the battlefield under your control this turn.

Choose two target players. Each of them searches their library for a card, then shuffles and puts that card on top.

( can be paid with either or 2 life.)
Look at target player's hand.
Draw a card.

Exile target creature. Its controller gains life equal to its power.

: Remove target attacking creature you control from combat and untap it. (If you activate during end of combat, the creature will untap after it deals combat damage.)

Add .

Return target creature card with mana value 3 or less from your graveyard to the battlefield.
Cycling (, Discard this card: Draw a card.)

Equipped creature has deathtouch and lifelink. (Any amount of damage it deals to a creature is enough to destroy it. Damage dealt by this creature also causes you to gain that much life.)
Equip (: Attach to target creature you control. Equip only as a sorcery.)

All creatures have haste.

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.

Enchant creature
Whenever enchanted creature deals damage to an opponent, you may draw a card.

Sacrifice this creature: Another target creature you control gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

Shroud (This enchantment can't be the target of spells or abilities.)
: Put X tower counters on this enchantment.
At the beginning of your upkeep, if there are 100 or more tower counters on this enchantment, you win the game.

Enchant Forest
As this Aura enters, choose a color.
Whenever enchanted Forest is tapped for mana, its controller adds an additional one mana of the chosen color.

A deck can have any number of cards named Shadowborn Apostle.
, Sacrifice six creatures named Shadowborn Apostle: Search your library for a Demon creature card, put it onto the battlefield, then shuffle.

( can be paid with either or 2 life.)
Choose target card in a graveyard other than a basic land card. Search its owner's graveyard, hand, and library for any number of cards with the same name as that card and exile them. Then that player shuffles.

At the beginning of each player's first main phase, that player adds .

Target player reveals their hand. You choose a nonland card from it with mana value 3 or less. That player discards that card.

Whenever an opponent plays a land, you may put a land card from your hand onto the battlefield.

Whenever a permanent you control enters tapped, untap it.

Sacrifice a Goblin: Add .

, Pay 2 life: Return target creature card from your graveyard to your hand.

Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
Whenever an opponent casts a noncreature spell, you may draw a card unless that player pays .