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."

{2}, {T}, Sacrifice Brainstone: Draw three cards, then put two cards from your hand on top of your library in any order.

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

{1}{B}, Sacrifice an artifact or creature: Draw a card.

{1}, Sacrifice Dross Skullbomb: Draw a card. {2}{B}, Sacrifice Dross Skullbomb: Return target creature card from your graveyard to your hand. Draw a card. Activate only as a sorcery.

{G}, Sacrifice Implement of Ferocity: Put a +1/+1 counter on target creature. Activate only as a sorcery. When Implement of Ferocity is put into a graveyard from the battlefield, draw a card.

{G}, Sacrifice Lifespark Spellbomb: Until end of turn, target land becomes a 3/3 creature that's still a land. {1}, Sacrifice Lifespark Spellbomb: Draw a card.

{1}, Sacrifice Maze Skullbomb: Draw a card. {2}{G}, Sacrifice Maze Skullbomb: Target creature you control gets +3/+3 and gains trample until end of turn. Draw a card. Activate only as a sorcery.

{1}{B}, Sacrifice Moriok Replica: You draw two cards and you lose 2 life.

{B}, Sacrifice Necrogen Spellbomb: Target player discards a card. {1}, Sacrifice Necrogen Spellbomb: Draw a card.

Whenever equipped creature deals combat damage to a player, you may draw a card. Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)

{1}, {T}, Discard a card: You gain 4 life. {1}, {T}, Pay 1 life: Create a 0/1 white Goat creature token. {1}, {T}, Sacrifice a creature: Return target artifact card from your graveyard to your hand. {1}, {T}, Sacrifice an artifact: Draw a card.

{4}, Sacrifice Treasure Chest: Roll a d20. 1 | Trapped! — You lose 3 life. 2—9 | Create five Treasure tokens. 10—19 | You gain 3 life and draw three cards. 20 | Search your library for a card. If it's an artifact card, you may put it onto the battlefield. Otherwise, put that card into your hand. Then shuffle.

{T}: Add {C}. {3}{G}, {T}, Sacrifice Blighted Woodland: Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.

Darkmoss Bridge enters the battlefield tapped. Indestructible {T}: Add {B} or {G}.

Myriad Landscape enters the battlefield tapped. {T}: Add {C}. {2}, {T}, Sacrifice Myriad Landscape: Search your library for up to two basic land cards that share a land type, put them onto the battlefield tapped, then shuffle.

{T}: Add {C}. {1}, {T}, Sacrifice an artifact: You gain 1 life.

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

Charcoal Diamond enters the battlefield tapped. {T}: Add {B}.

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

{T}: Add {G}.

{T}: Add {C}{C}{C}. {3}, {T}, Sacrifice Dreamstone Hedron: Draw three cards.

Artifact spells you cast cost {1} less to cast.

{T}: Add {B} or {G}. {B}{G}, {T}, Sacrifice Golgari Cluestone: Draw a card.

{T}: Add {B} or {G}. {B}{G}: Golgari Keyrune becomes a 2/2 black and green Insect artifact creature with deathtouch until end of turn.

{T}: Add {B} or {G}. {B/G}{B/G}{B/G}{B/G}, {T}, Sacrifice Golgari Locket: Draw two cards.

{T}: Add {C}{C}. {2}, {T}, Sacrifice Hedron Archive: Draw two cards.

{2}, {T}, Sacrifice Horizon Spellbomb: Search your library for a basic land card, reveal it, put it into your hand, then shuffle. When Horizon Spellbomb is put into a graveyard from the battlefield, you may pay {G}. If you do, draw a card.

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

Moss Diamond enters the battlefield tapped. {T}: Add {G}.

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

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

Whenever Slagstone Refinery or another nontoken artifact you control is put into a graveyard from the battlefield or is put into exile from the battlefield, create a tapped Powerstone token. (It's an artifact with "{T}: Add {C}. This mana can't be spent to cast a nonartifact spell.")

{T}: Add {C}{C}. {2}, {T}, Sacrifice Stonespeaker Crystal: Exile any number of target players' graveyards. Draw a card.

{T}: Add {C}. {7}, {T}, Sacrifice Unstable Obelisk: Destroy target permanent.

{2}, {T}, Sacrifice Wayfarer's Bauble: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom of your library in a random order.) {1}, {T}, Sacrifice an artifact: Return target artifact you control to its owner's hand.

This spell costs {X} less to cast, where X is the total mana value of noncreature artifacts you control. Sacrifice two artifacts: Return Metalwork Colossus from your graveyard to your hand.

Whenever Armix, Filigree Thrasher attacks, you may discard a card. When you do, target creature defending player controls gets -X/-X until end of turn, where X is the number of artifacts you control plus the number of artifact cards in your graveyard. Partner (You can have two commanders if both have partner.)

Target creature you control deals damage equal to its power to target creature or planeswalker you don't control.

Each player sacrifices a creature or planeswalker. If you sacrificed a permanent this way, you may return another permanent card from your graveyard to your hand.

Destroy all creatures. They can't be regenerated. Draw a card for each creature destroyed this way. Cycling {3}{B}{B} ({3}{B}{B}, Discard this card: Draw a card.) When you cycle Decree of Pain, all creatures get -2/-2 until end of turn.

{1}{B}, {T}, Sacrifice Executioner's Capsule: Destroy target nonblack creature.

When Meteor Golem enters the battlefield, destroy target nonland permanent an opponent controls.

When Perilous Myr dies, it deals 2 damage to any target.

Each player sacrifices a creature. If you sacrificed a creature this way, you may return another permanent card from your graveyard to the battlefield.

Equipped creature gets +1/+0 and has "Whenever this creature attacks, you may sacrifice Spare Dagger. When you do, this creature deals 1 damage to any target." Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

When Spine of Ish Sah enters the battlefield, destroy target permanent. When Spine of Ish Sah is put into a graveyard from the battlefield, return Spine of Ish Sah to its owner's hand.

Flying {2}: Steel Hellkite gets +1/+0 until end of turn. {X}: Destroy each nonland permanent with mana value X whose controller was dealt combat damage by Steel Hellkite this turn. Activate only once each turn.

{G}, Sacrifice Sylvok Replica: Destroy target artifact or enchantment.

Flash This spell costs {1} less to cast for each attacking creature. Trample When Ancient Stone Idol dies, create a 6/12 colorless Construct artifact creature token with trample.

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.) Whenever a nontoken artifact you control is put into a graveyard from the battlefield, create a 1/1 colorless Servo artifact creature token.

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

{2}, {T}, Sacrifice Armillary Sphere: Search your library for up to two basic land cards, reveal them, put them into your hand, then shuffle.

{1}, {T}, Sacrifice Barbed Sextant: Add one mana of any color. Draw a card at the beginning of the next turn's upkeep.

Destroy target nonblack creature.

When Filigree Familiar enters the battlefield, you gain 2 life. When Filigree Familiar dies, draw a card.

When Fleshbag Marauder enters the battlefield, each player sacrifices a creature.

Trample Whenever Geode Golem deals combat damage to a player, you may cast your commander from the command zone without paying its mana cost. (You still pay any additional costs.)

When Golden Egg enters the battlefield, draw a card. {1}, {T}, Sacrifice Golden Egg: Add one mana of any color. {2}, {T}, Sacrifice Golden Egg: You gain 3 life.

Reveal the top five cards of your library. You may put a creature or land card from among them into your hand. Put the rest into your graveyard.

When Guild Globe enters the battlefield, draw a card. {2}, {T}, Sacrifice Guild Globe: Add two mana of different colors.

When Ichor Wellspring enters the battlefield or is put into a graveyard from the battlefield, draw a card.

{B}, Sacrifice Implement of Malice: Target player discards a card. Activate only as a sorcery. When Implement of Malice is put into a graveyard from the battlefield, draw a card.

Sacrifice any number of artifacts, enchantments, and/or tokens. Return that many creature cards from your graveyard to the battlefield.

Equipped creature gets +3/+0 and has trample and lifelink. Equip {3}

When Metalspinner's Puzzleknot enters the battlefield, you draw a card and you lose 1 life. {2}{B}, Sacrifice Metalspinner's Puzzleknot: You draw a card and you lose 1 life.

As an additional cost to cast this spell, sacrifice an artifact or creature. Draw cards equal to the mana value of the sacrificed permanent.

When Mycosynth Wellspring enters the battlefield or is put into a graveyard from the battlefield, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle.

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

When Prized Statue enters the battlefield or is put into a graveyard from the battlefield, create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

Terrarion enters the battlefield tapped. {2}, {T}, Sacrifice Terrarion: Add two mana in any combination of colors. When Terrarion is put into a graveyard from the battlefield, draw a card.