When Wernog, Rider's Chaplain enters or leaves the battlefield, each opponent may investigate. Each opponent who doesn't loses 1 life. You investigate X times, where X is one plus the number of opponents who investigated this way. Friends forever (You can have two commanders if both have friends forever.)

If you would create a Clue, Food, or Treasure token, instead create one of each.

Commander creatures you own have "Whenever an artifact or creature you control is put into a graveyard from the battlefield, each opponent loses 1 life."

Whenever Astrid Peth enters the battlefield or attacks, create a Food token. Brand-new Sky — Whenever you sacrifice a Clue or Food, Astrid Peth explores. (Reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on this creature, then put the card back or put it into your graveyard.)

Equipped creature gets +1/+0 for each artifact you control. {B}{B}: Attach Cranial Plating to target creature you control. Equip {1}

Whenever an artifact is put into a graveyard from the battlefield, you may have target opponent lose 1 life.

Nonartifact spells you cast have improvise. (Your artifacts can help cast those spells. Each artifact you tap after you're done activating mana abilities pays for {1}.)

Flying Whenever a nontoken creature you control dies, investigate. Clues you control have exalted. (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn for each instance of exalted among permanents you control.)

When Persuasive Interrogators enters the battlefield, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.") Whenever you sacrifice a Clue, target opponent gets two poison counters. (A player with ten or more poison counters loses the game.)

Deathtouch At the beginning of your end step, investigate for each opponent who lost life this turn. Whenever a Clue you control is put into a graveyard from the battlefield, create a 1/1 white and black Spirit creature token with flying. This ability triggers only once each turn.

As an additional cost to cast this spell, sacrifice an artifact or 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 artifact: Add one mana of any color.")

Menace When God-Eternal Bontu enters the battlefield, sacrifice any number of other permanents, then draw that many cards. When God-Eternal Bontu dies or is put into exile from the battlefield, you may put it into its owner's library third from the top.

Sacrifice any number of permanents you control, then draw that many cards. Plot {1}{B}{B} (You may pay {1}{B}{B} and exile this card from your hand. Cast it as a sorcery on a later turn without paying its mana cost. Plot only as a sorcery.)

Sacrifice any number of artifacts, creatures, and/or lands. Draw a card for each permanent sacrificed this way.

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

{T}: Add one mana of any color in your commander's color identity. Sacrifice Commander's Sphere: Draw a card.

{T}: Add {C}. {1}, {T}, Sacrifice Mind Stone: Draw a card.

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

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

Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.) {T}: Add {C}. {5}, {T}: Draw a card. Activate only if you have the city's blessing.

{T}: Add {C}. Basic landcycling {1} ({1}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)

{T}: Add {C}. {T}: Add {W} or {B}. Caves of Koilos deals 1 damage to you.

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

{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Orzhov Basilica enters the battlefield tapped. When Orzhov Basilica enters the battlefield, return a land you control to its owner's hand. {T}: Add {W}{B}.

({T}: Add {W}.)

Scoured Barrens enters the battlefield tapped. When Scoured Barrens enters the battlefield, you gain 1 life. {T}: Add {W} or {B}.

({T}: Add {B}.)

Temple of Silence enters the battlefield tapped. When Temple of Silence enters the battlefield, scry 1. {T}: Add {W} or {B}.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I — Urza's Saga gains "{T}: Add {C}." II — Urza's Saga gains "{2}, {T}: Create a 0/0 colorless Construct artifact creature token with 'This creature gets +1/+1 for each artifact you control.'" III — Search your library for an artifact card with mana cost {0} or {1}, put it onto the battlefield, then shuffle.

Exile target creature you control, then return that card to the battlefield under your control.

Exile target creature you control, then return it to the battlefield under its owner's control. 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.)

Commander creatures you own have "At the beginning of your end step, exile up to one target tapped creature you control, then return it to the battlefield under its owner's control."

Exile target creature or enchantment, then return it to the battlefield under its owner's control.

When Fortune, Loyal Steed enters the battlefield, scry 2. Whenever Fortune attacks while saddled, at end of combat, exile it and up to one creature that saddled it this turn, then return those cards to the battlefield under their owner's control. Saddle 1

Exile target creature. At the beginning of the next end step, return that card to the battlefield under its owner's control with a +1/+1 counter on it.

Whenever another nontoken creature enters the battlefield under your control, if it wasn't cast, create a token that's a copy of that creature, except it's a 0/1 white Illusion. {1}{W}, Sacrifice five Illusions: Exile target nonland permanent.

Flash Flying When Restoration Angel enters the battlefield, you may exile target non-Angel creature you control, then return that card to the battlefield under your control.

Until end of turn, target creature gets +2/+0 and gains "When this creature dies, return it to the battlefield tapped under its owner's control."

Whenever a creature is put into your graveyard from the battlefield, you may sacrifice Angelic Renewal. If you do, return that card to the battlefield.

Until end of turn, target creature gets +2/+0 and gains "When this creature dies, return it to the battlefield under its owner's control."

Until end of turn, target creature gets +2/+0 and gains "When this creature dies, return it to the battlefield tapped under its owner's control and you create a Treasure token." (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

Until end of turn, target creature gains "When this creature dies, return it to the battlefield tapped under its owner's control with a +1/+1 counter on it."

Flash Flying When Glorious Protector enters the battlefield, you may exile any number of non-Angel creatures you control until Glorious Protector leaves the battlefield. Foretell {2}{W}

When target creature dies this turn, return that card to the battlefield under its owner's control.

Until end of turn, target creature gets +1/+0 and gains lifelink and "When this creature dies, return it to the battlefield tapped under its owner's control."

Until end of turn, target creature gets +2/+0 and gains "When this creature dies, return it to the battlefield tapped under its owner's control."

Return target creature card with mana value 3 or less from your graveyard to the battlefield tapped.

Companion — Each permanent card in your starting deck has mana value 2 or less. (If this card is your chosen companion, you may put it into your hand from outside the game for {3} as a sorcery.) Lifelink Once during each of your turns, you may cast a permanent spell with mana value 2 or less from your graveyard.

Flying {0}: You may cast target instant or sorcery card from your graveyard this turn. If that spell doesn't target a creature you control, it costs {8} more to cast this way. If that spell would be put into your graveyard, exile it instead. Activate only once each turn. (You still pay the spell's costs. Timing rules for the spell still apply.)

Vigilance Whenever Sun Titan enters the battlefield or attacks, you may return target permanent card with mana value 3 or less from your graveyard to the battlefield.

Return target creature card with mana value 3 or less from your graveyard to the battlefield. Cycling {2} ({2}, Discard this card: Draw a card.)

Exile target nonland permanent. You lose 3 life.

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.) Target creature gets -X/-X until end of turn. You gain X life.

Exile target creature. If you don't control a Human, you lose life equal to that creature's toughness.

As an additional cost to cast this spell, sacrifice an artifact or creature. Ward {2} When Dusk Rose Reliquary enters the battlefield, exile target artifact or creature an opponent controls until Dusk Rose Reliquary leaves the battlefield.

Destroy all creatures with power greater than target creature's power.

Destroy target creature or enchantment.

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

Deathtouch Whenever Ashnod, Flesh Mechanist attacks, you may sacrifice another creature. If you do, create a tapped Powerstone token. {5}, Exile a creature card from your graveyard: Create a tapped 3/3 colorless Zombie artifact creature token.

Flash Mold Earth — Whenever one or more lands enter the battlefield under an opponent's control without being played, you may search your library for a Plains card, put it onto the battlefield tapped, then shuffle. Do this only once each turn.

+1: Create a tapped Powerstone token. (It's an artifact with "{T}: Add {C}. This mana can't be spent to cast a nonartifact spell.") −1: Pay any amount of mana. Look at that many cards from the top of your library, then put one of those cards into your hand and the rest on the bottom of your library in a random order. −7: You get an emblem with "Tap an untapped artifact you control: This emblem deals 1 damage to any target."

Whenever a player casts their second spell each turn, you lose 1 life and create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

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

At the beginning of your upkeep, you may add {C}{C}. You can't spend this mana to cast spells.

{W}, {T}: Search your library for a land card, reveal it, put it into your hand, then shuffle. Activate only if an opponent controls more lands than you.