Menace Whenever a creature you control deals combat damage to a player, you gain life equal to that creature's toughness. Partner (You can have two commanders if both have partner.)

{T}: Target player mills a card. (They put the top card of their library into their graveyard.) {5}, {T}, Sacrifice this artifact: Return target card from your graveyard to your hand.

Players have no maximum hand size. {X}{X}, {T}: Each player draws X cards. {2}{U}, {T}: Each opponent mills cards equal to the number of cards in their hand.

{1}, {T}, Discard a card: Put a study counter on Grimoire of the Dead. {T}, Remove three study counters from Grimoire of the Dead and sacrifice it: Put all creature cards from all graveyards onto the battlefield under your control. They're black Zombies in addition to their other colors and types.

Players play with the top card of their libraries revealed. {T}, Sacrifice this artifact: Target player shuffles.

Whenever a permanent becomes untapped, that permanent's controller mills a card.

{T}: Add one mana of any color. {1}, {T}: Untap target legendary creature you control.

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

{1}: Untap this artifact. {2}, {T}: You gain 1 life. {3}, {T}: Untap target creature. {4}, {T}: Tap target creature. {5}, {T}: Draw a card.

When Acererak enters, if you haven't completed Tomb of Annihilation, return Acererak to its owner's hand and venture into the dungeon. Whenever Acererak attacks, for each opponent, you create a 2/2 black Zombie creature token unless that player sacrifices a creature of their choice.

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

{B}, {T}, Sacrifice this creature: Return target creature card from your graveyard to the battlefield. That creature gains haste. At the beginning of the next end step, sacrifice it.

When you cast this spell, you may return target creature card from your graveyard to the battlefield. Annihilator 2 (Whenever this creature attacks, defending player sacrifices two permanents of their choice.)

Whenever this creature attacks or blocks, sacrifice a creature.

At the beginning of your upkeep, sacrifice a creature. When you sacrifice this creature, each opponent discards a card, you draw a card, and you gain 2 life.

When this creature enters, sacrifice another creature. You gain X life and draw X cards, where X is that creature's power.

Vanishing 2 (This creature enters with two time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.) Whenever a player casts their second spell each turn, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Whenever another creature you control dies, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this token: Draw a card.") Whenever you sacrifice a token, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)

Reach When this creature enters, you may search your library and/or graveyard for a creature card with no abilities, reveal it, and put it into your hand. If you search your library this way, shuffle.

This spell costs {X} less to cast, where X is the total power of creatures you control. Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

{T}: Untap another target permanent.

Whenever another nontoken creature you control enters, investigate. {T}, Sacrifice X Clues: Target opponent reveals the top X cards of their library. You may put a nonland permanent card with mana value X or less from among them onto the battlefield under your control. That player puts the rest on the bottom of their library in a random order.

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 in a random order.)

Flying Whenever a player sacrifices another permanent, put a +1/+1 counter on each creature you control.

Overbeing of Myth's power and toughness are each equal to the number of cards in your hand. At the beginning of your draw step, draw an additional card.

This spell costs {1} less to cast for each creature your opponents control. When this creature enters, put a +1/+1 counter on each other creature you control.

Psychosis Crawler's power and toughness are each equal to the number of cards in your hand. Whenever you draw a card, each opponent loses 1 life.

Whenever Ruxa enters or attacks, return target creature card with no abilities from your graveyard to your hand. Creatures you control with no abilities get +1/+1. For each creature you control with no abilities, you may have that creature assign its combat damage as though it weren't blocked.

Other tapped creatures you control have deathtouch. Other untapped creatures you control have hexproof. {1}, {T}: Untap another target creature or land you control.

{1}{B}, {T}, Sacrifice another creature: Draw X cards, where X is that creature's power. Choose a Background (You can have a Background as a second commander.)

Trample Whenever another nontoken creature you control enters, you may draw a card.

Descend 8 — The Ancient One can't attack or block unless there are eight or more permanent cards in your graveyard. {2}{U}{B}: Draw a card, then discard a card. When you discard a card this way, target player mills cards equal to its mana value.

Trample, haste Whenever The Gitrog deals combat damage to a player, you may sacrifice a creature that saddled it this turn. If you do, draw X cards, then put up to X land cards from your hand onto the battlefield tapped, where X is the sacrificed creature's power. Saddle 1

Vigilance Ward—Sacrifice a permanent with mana value 1 or greater. {T}: Create a 10/10 colorless Eldrazi creature token.

Flash When this enchantment enters, draw a card. Creatures lose all abilities. At the beginning of the end step, sacrifice this enchantment.

Enchant creature {U}: Tap enchanted creature. {U}: Untap enchanted creature.

Sacrifice a creature: Draw cards equal to the sacrificed creature's power, then discard three cards.

Creatures with no abilities get +2/+2.

Draw two cards, then discard a card. You gain life equal to the number of cards you've discarded this turn. Jump-start (You may cast this card from your graveyard by discarding a card in addition to paying its other costs. Then exile this card.)

As an additional cost to cast this spell, sacrifice a creature. You draw cards equal to the sacrificed creature's power, then you gain life equal to its toughness.

Choose one — • Draw cards equal to the greatest power among non-Human creatures you control. • Non-Human creatures you control get +3/+3 until end of turn.

({T}: Add {G}.)

({T}: Add {U}.)

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

Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.

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

As an additional cost to cast this spell, sacrifice a creature. Draw cards equal to the sacrificed creature's power.

Search your library for a Forest card, put that card onto the battlefield, then shuffle.

Scry 5, then reveal the top card of your library. If it's a creature card, you draw cards equal to its power and you gain life equal to its toughness.

Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Return up to one target creature card, up to one target Mount card, up to one target Vehicle card, and up to one target creature card with no abilities from your graveyard to your hand.

Draw cards equal to the greatest power among creatures you control. You may cast a spell with mana value 5 or less from your hand without paying its mana cost.