Constellation -- Whenever Agent of Erebos or another enchantment enters the battlefield under your control, exile target player's graveyard.

{T}: Add {C}.

{G}{U}, {T}: You may cast spells this turn as though they had flash.

For each color, return up to one target card of that color from your graveyard to your hand. Exile All Suns' Dawn.

Flying

{W}: Target permanent becomes white until end of turn.

{T}: Change the text of target white enchantment you control that doesn't have cumulative upkeep by replacing all instances of one color word with another. (For example, you may change "black creatures can't attack" to "blue creatures can't attack.") That enchantment gains "Cumulative upkeep {1}." (At the beginning of its controller's upkeep, that player puts an age counter on it, then sacrifices it unless they pay its upkeep cost for each age counter on it.)

{1}{U}: Target spell or permanent becomes the color of your choice until end of turn.

Cumulative upkeep {U} (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.)

Green creatures have "Cumulative upkeep {1}."

{1}: The next time a black source of your choice would deal damage to you this turn, prevent that damage.

{1}: The next time a blue source of your choice would deal damage to you this turn, prevent that damage.

{1}: The next time a green source of your choice would deal damage to you this turn, prevent that damage.

{1}: The next time a red source of your choice would deal damage to you this turn, prevent that damage.

{1}: The next time a white source of your choice would deal damage to you this turn, prevent that damage.

Destroy all black creatures.

Search your library for a white card, a blue card, a black card, a red card, and a green card. Reveal those cards, put them into your hand, then shuffle.

Flying

Sacrifice Daraja Griffin: Destroy target black creature.

At the beginning of your upkeep, sacrifice Drought unless you pay {W}{W}.

Spells cost an additional "Sacrifice a Swamp" to cast for each black mana symbol in their mana costs.

Activated abilities cost an additional "Sacrifice a Swamp" to activate for each black mana symbol in their activation costs.

One or more target creatures become red until end of turn.

{B}{B}, {T}: Destroy target green creature.

Destroy target white creature. It can't be regenerated.

Draw a card.

Flying

Fylamarid can't be blocked by blue creatures.

{U}: Target creature becomes blue until end of turn.

Enchant creature

Enchanted creature gets -1/-1 and is a black Zombie in addition to its other colors and types.

Menace

When Goblin Dark-Dwellers enters the battlefield, you may cast target instant or sorcery card with mana value 3 or less from your graveyard without paying its mana cost. If that spell would be put into your graveyard, exile it instead.

{1}{W}: The next time a black or red source of your choice would deal damage to you this turn, prevent that damage.

One or more target creatures become white until end of turn.

Ignite Disorder deals 3 damage divided as you choose among one, two, or three target white and/or blue creatures.

At the beginning of your upkeep, sacrifice Justice unless you pay {W}{W}.

Whenever a red creature or spell deals damage, Justice deals that much damage to that creature's or spell's controller.

{1}{U}, {T}: Put target green creature on top of its owner's library.

{T}, Sacrifice Lawbringer: Exile target red creature.

All Forests and all Saprolings are 1/1 green Saproling creatures and Forest lands in addition to their other types. (They're affected by summoning sickness.)

{T}, Sacrifice Lightbringer: Exile target black creature.

Destroy target black creature or black planeswalker. If that permanent was a Liliana planeswalker, her controller loses 3 life.

Flying

{3}{W}{W}, Sacrifice Major Teroh: Exile all black creatures.

Mana Vault doesn't untap during your untap step.

At the beginning of your upkeep, you may pay {4}. If you do, untap Mana Vault.

At the beginning of your draw step, if Mana Vault is tapped, it deals 1 damage to you.

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

Whenever you cast an instant or sorcery spell, create an X/X colorless Construct artifact creature token, where X is that spell's mana value.

{3}{U}{U}, Exile Metallurgic Summonings: Return all instant and sorcery cards from your graveyard to your hand. Activate only if you control six or more artifacts.

Exile target card that's an instant or sorcery from your graveyard. For each card exiled this way, copy it, and you may cast the copy without paying its mana cost. Exile Mizzix's Mastery.

Overload {5}{R}{R}{R} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

Destroy all green creatures.

Destroy target Forest, green enchantment, or green planeswalker. If that permanent was a Nissa planeswalker, draw a card.

Destroy target creature or planeswalker that's green or white. You gain 1 life.

Put a card from your hand on top of your library: The next time a black or red source of your choice would deal damage this turn, prevent that damage.

Destroy all green creatures. They can't be regenerated.

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

Draw a card.

Flying

Threshold -- As long as seven or more cards are in your graveyard, Possessed Aven gets +1/+1, is black, and has "{2}{B}, {T}: Destroy target blue creature."

First strike

Threshold -- As long as seven or more cards are in your graveyard, Possessed Barbarian gets +1/+1, is black, and has "{2}{B}, {T}: Destroy target red creature."

Trample

Threshold -- As long as seven or more cards are in your graveyard, Possessed Centaur gets +1/+1, is black, and has "{2}{B}, {T}: Destroy target green creature."

Vigilance

Threshold -- As long as seven or more cards are in your graveyard, Possessed Nomad gets +1/+1, is black, and has "{2}{B}, {T}: Destroy target white creature."

Destroy target artifact creature or black creature. It can't be regenerated.

{T}: If target Plains is tapped for mana, it produces colorless mana instead of white mana. (This effect lasts indefinitely.)

Black creatures can't block.

Destroy all green creatures or all white creatures. They can't be regenerated. You lose 2 life for each creature that died this way.

Draw cards equal to the number of cards in your hand plus one. You have no maximum hand size for the rest of the game.

As Sea Gate, Reborn enters the battlefield, you may pay 3 life. If you don't, it enters the battlefield tapped.

{T}: Add {U}.

One or more target creatures become blue until end of turn.

{B}{R}, {T}: Shauku's Minion deals 2 damage to target white creature.

Until end of turn, you may cast target instant or sorcery card from your graveyard without paying its mana cost. If that spell would be put into your graveyard, exile it instead. Exile Sins of the Past.

Destroy target green creature. It can't be regenerated.

Draw a card.

Enchant permanent

Enchanted permanent is a colorless Forest land.

{W}{W}, {T}: Destroy target red permanent.

Other black creatures get -1/-1.

{G/U}{G/U}: Target creature you control becomes the color or colors of your choice until end of turn.

Whenever you cast an instant or sorcery spell, create a 2/2 blue Drake creature token with flying.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I -- Return target instant card from your graveyard to your hand.

II -- Return target sorcery card from your graveyard to your hand.

III -- Until end of turn, whenever you cast an instant or sorcery spell, copy it. You may choose new targets for the copy.

This spell can't be countered.

Target opponent reveals their hand. Exile all noncreature, nonland cards from that player's hand and graveyard.

Cumulative upkeep {2} (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.)

Pay 2 life or {2}: Counter target red or green spell. Any player may activate this ability.

One or more target creatures become black until end of turn.