Menace

Modular 2 (This creature enters with two +1/+1 counters on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

Whenever you cast a spell other than your first spell each turn, put a +1/+1 counter on Arcbound Tracker.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)

At the beginning of each end step, if you created a token this turn, draw a card.

Return target creature to its owner's hand. If it was tapped, create a Map token. (It's an artifact with ", , Sacrifice this artifact: Target creature you control explores. Activate only as a sorcery.")

When Brackwater Elemental attacks or blocks, sacrifice it at the beginning of the next end step.

Unearth (: 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.)

, : Look at the top four cards of your library. You may reveal a creature card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Flying

When Cold Case Cracker dies, investigate. (Create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

Vanishing 3 (This enchantment enters with three time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)

When Crack in Time enters and at the beginning of your first main phase, exile target creature an opponent controls until Crack in Time leaves the battlefield.

Each player sacrifices a permanent of their choice.

Whenever you activate an ability of an artifact or creature that isn't a mana ability, Crackdown Construct gets +1/+1 until end of turn.

Crackle with Power deals five times X damage to each of up to X targets.

Enchant creature

Enchanted creature gets +1/+0.

Sacrifice Crackling Club: It deals 1 damage to target creature.

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

Enchant land you control

Enchanted land is a 3/3 red Spirit creature with haste. It's still a land.

If enchanted land would be destroyed, instead sacrifice Crackling Emergence and that land gains indestructible until end of turn.

Tap an untapped Gate you control: Crackling Perimeter deals 1 damage to each opponent.

, Sacrifice Crackling Triton: It deals 2 damage to any target.

, : Exile two target cards from an opponent's graveyard. Deadeye Tracker 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.)

Flash

Eerie — Whenever an enchantment you control enters and whenever you fully unlock a Room, draw a card.

Whenever Goblin Racketeer attacks, you may goad target creature defending player controls. (Until your next turn, that creature attacks each combat if able and attacks a player other than you if able.)

Flying

When Griffnaut Tracker enters, exile up to two target cards from a single graveyard.

Reach

When Kraul Whipcracker enters, destroy target token an opponent controls.

Flying, trample

When Mindwrack Demon enters, mill four cards.

Delirium — At the beginning of your upkeep, you lose 4 life unless there are four or more card types among cards in your graveyard.

Other blue creatures you control get +1/+1.

Other red creatures you control get +1/+1.

: You may put a blue or red creature card from your hand onto the battlefield.

Whenever Orzhov Racketeers deals combat damage to a player, that player discards a card.

Afterlife 2 (When this creature dies, create two 1/1 white and black Spirit creature tokens with flying.)

: Untap target land.

: Choose target battle. If an opponent protects it, remove a defense counter from it. Otherwise, put a defense counter on it. Activate only as a sorcery.

Whenever this creature attacks, each opponent loses 1 life.

When Racketeer Boss enters the battlefield, choose up to two creature and/or planeswalker cards in your hand. They perpetually gain "When you cast this spell, create a Treasure token."

Whenever you cast a noncreature spell, put a loyalty counter on Ral, Crackling Wit.

+1: Create a 1/1 blue and red Otter creature token with prowess.

−3: Draw three cards, then discard two cards.

−10: Draw three cards. You get an emblem with "Instant and sorcery spells you cast have storm." (Whenever you cast an instant or sorcery spell, copy it for each spell cast before it this turn.)

, : Exile any number of cards from your hand face down. Put that many cards from the top of your library into your hand. Then look at the exiled cards and put them on top of your library in any order.

Reach

Whenever you cast a spell with mana value 5 or greater, create a Food token. (It's an artifact with ", , Sacrifice this artifact: You gain 3 life.")

Whenever Thousand Moons Crackshot attacks, you may pay . When you do, tap target creature.

When Topography Tracker enters, create a Map token. (It's an artifact with ", , Sacrifice this artifact: Target creature you control explores. Activate only as a sorcery.")

If a creature you control would explore, instead it explores, then it explores again.

, : Tracker deals damage equal to its power to target creature. That creature deals damage equal to its power to Tracker.

: Add one mana of any color.

Whenever you expend 8, return up to one target permanent card from your graveyard to your hand. (You expend 8 as you spend your eighth total mana to cast spells during a turn.)

, : Target creature you control fights another target creature.

, : Venomspout Brackus deals 5 damage to target attacking or blocking creature with flying.

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

Weapon Rack enters with three +1/+1 counters on it.

: Move a +1/+1 counter from Weapon Rack onto target creature. Activate only as a sorcery.

Target creature deals damage to itself equal to its power.