Counter target spell.

Crackling Doom deals 2 damage to each opponent. Each opponent sacrifices a creature with the greatest power among creatures that player controls.

Choose two — • Put two +1/+1 counters on up to one creature. It gains lifelink until end of turn. • Destroy each creature with power 2 or less. • Return up to two creature cards from your graveyard to your hand. • Each opponent sacrifices a creature with the highest power among creatures they control.

This spell costs {1} less to cast if you control an artifact creature. Return target nonland permanent to its owner's hand.

+2: Target opponent exiles cards from the top of their library until they exile a nonland card. Until end of turn, you may cast that card without paying its mana cost. +1: Each opponent exiles two cards from their hand. −4: Nicol Bolas deals 7 damage to target opponent, creature an opponent controls, or planeswalker an opponent controls. −12: Exile each nonland permanent your opponents control.

Destroy all nonland permanents your opponents control.

Choose target opponent. Destroy target land that player controls. The Fall of Kroog deals 3 damage to that player and 1 damage to each creature they control.

First strike When this creature enters, target opponent may have you draw three cards. If the player doesn't, you mill three cards, then this creature deals damage to that player equal to the total mana value of those cards.

The first spell you cast each turn has cascade. (When you cast your first 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.)

Each spell costs {3} more to cast except during its controller's turn.

For Mirrodin! (When this Equipment enters, create a 2/2 red Rebel creature token, then attach this to it.) Whenever this Equipment becomes attached to a creature, for as long as this Equipment remains attached to it, you may have that creature become a copy of another target creature you control. Equip {2}

At the beginning of your upkeep, create a token that's a copy of another target nonland permanent you control.

Equipped creature gets +1/+0 and has menace. (It can't be blocked except by two or more creatures.) Whenever a creature enters from your graveyard, you may attach this Equipment to it. Equip {1}{B} ({1}{B}: Attach to target creature you control. Equip only as a sorcery.)

Artifacts you control have ward {1}. (Whenever an artifact you control becomes the target of a spell or ability an opponent controls, counter it unless that player pays {1}.) When Elder Owyn Lyons enters or dies, return target artifact card from your graveyard to your hand.

You gain 1 life for each creature on the battlefield. Prevent all combat damage that would be dealt this turn by creatures with power 3 or less.

+1: Create a 3/3 Kavu creature token with trample that's all colors. −3: Choose up to two target creatures. For each of them, put a number of +1/+1 counters on it equal to the number of colors it is. −6: Return target multicolored card from your graveyard to your hand. If that card was all colors, draw a card and create two Treasure tokens. Jared Carthalion can be your commander.

Create four 1/1 colorless Soldier artifact creature tokens.

Whenever you cast an artifact creature spell, it gains sunburst. (It enters with a +1/+1 counter on it for each color of mana spent to cast it.) At the beginning of your end step, if there are thirty or more counters among artifacts and creatures you control, this artifact deals 10 damage to each opponent.

{T}: Put a +1/+1 counter on each artifact creature you control.

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.) Indestructible (Damage and effects that say "destroy" don't destroy this creature.) If Darksteel Colossus would be put into a graveyard from anywhere, reveal Darksteel Colossus and shuffle it into its owner's library instead.

This artifact enters tapped. {W}{W}{U}{U}{B}{B}{R}{R}{G}{G}, {T}, Sacrifice this artifact: Target player loses the game.

Whenever you cast a spell that's one or more colors, you may gain 1 life for each of that spell's colors. Do this only once each turn. {T}: Add one mana of any color.

For Mirrodin! (When this Equipment enters, create a 2/2 red Rebel creature token, then attach this to it.) Equip abilities you activate of other Equipment cost {1} less to activate. Equipped creature has double strike. Equip {3}{R}{W}

Lands you control have "{T}: Add one mana of any color." {T}: Add one mana of any color.

Prototype {2}{G} — 1/3 (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.) {T}: Add an amount of {G} equal to this creature's power.

Sacrifice a land. Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle. If you control a creature with power 4 or greater, instead search your library for up to three basic land cards, put them onto the battlefield tapped, then shuffle.

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

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

{3}, {T}: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.

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.

{4}, {T}: You may put a creature card from your hand onto the battlefield.

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

When this creature enters, create a tapped Powerstone token. (It's an artifact with "{T}: Add {C}. This mana can't be spent to cast a nonartifact spell.")

Vigilance Ward {4} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {4}.) When this creature dies, add eight {C}. Until end of turn, you don't lose this mana as steps and phases end.

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

{1}: Until end of turn, this creature gets -1/-1 and gains your choice of flying, vigilance, deathtouch, or haste.

Prototype {1}{W} — 2/2 (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.) Vigilance {1}, {T}: Put a +1/+1 counter on target Assembly-Worker you control.

Prototype {4}{U}{U} — 6/6 (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.) This creature doesn't untap during your untap step. {3}: Untap this creature.

Menace At the beginning of your upkeep, tap this creature unless you pay {3}. Unearth {6}{R}{R} ({6}{R}{R}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Prototype {2}{G}{G} — 2/5 (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.) Whenever this creature attacks, target attacking creature gets +X/+0 until end of turn, where X is this creature's power.

{T}: Add {C}. {1}{U}, {T}: Put target artifact card from your graveyard on top of your library.

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

{T}: Add {C}. {2}, {T}, Sacrifice this land: Return target artifact card from your graveyard to your hand.

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

{T}: Add {C}. {2}, {T}, Sacrifice this land: Destroy target nonbasic land an opponent controls. That land's controller may search their library for a basic land card, put it onto the battlefield, then shuffle. You may search your library for a basic land card, put it onto the battlefield, then shuffle.

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

({T}: Add {G}.)

({T}: Add {U}.)

{T}: Add {C}. {4}, {T}: Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

({T}: Add {R}.)

({T}: Add {W}.)

{T}: Add {C}. {T}, Sacrifice this land: Search your library for a basic Mountain, Forest, or Plains card, put it onto the battlefield tapped, then shuffle. Cycling {R}{G}{W} ({R}{G}{W}, Discard this card: Draw a card.)

This creature enters tapped. {2}{B}: Return this card from your graveyard to your hand.

Return all artifact and enchantment cards from all graveyards to the battlefield under their owners' control. (Auras with nothing to enchant remain in graveyards.)

Return target artifact, enchantment, or planeswalker card from your graveyard to 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.")