VERSION A
Scratch one.
1/1. Flying
1/3. : Untap Card Shark.
6/3. Flying

VERSION B
Scratch one.
1/1. Flying
3/3. : Return Card Shark to its owner's hand.
0/1. : Card Shark deals 1 damage to any target.

VERSION C
Scratch one.
2/2. Card Shark can't be blocked.
1/4. : Target creature gains flying until end of turn.
1/1. , Sacrifice Card Shark: Draw a card.

VERSION D
Scratch one.
1/1. , Sacrifice Card Shark: Draw a card.
0/1. : Return Card Shark to its owner's hand.
3/3. : Return Card Shark to its owner's hand.

VERSION E
Scratch one.
1/4. : Target creature gains flying until end of turn.
0/1. : Return Card Shark to its owner's hand.
1/3. : Untap Card Shark.

VERSION F
Scratch one.
6/3. Flying
0/1. : Return Card Shark to its owner's hand.
0/1. : Card Shark deals 1 damage to any target.

VERSION G
Scratch one.
1/1. , Sacrifice Card Shark: Draw a card.
2/2. Card Shark can't be blocked.
2/1.

VERSION H
Scratch one.
3/3. : Return Card Shark to its owner's hand.
1/3. : Untap Card Shark.
2/1.

VERSION I
Scratch one.
0/1. : Card Shark deals 1 damage to any target.
1/4. : Target creature gains flying until end of turn.
2/1.

VERSION J
Scratch one.
1/1. Flying
2/2. Card Shark can't be blocked.
6/3. Flying

Enchant creature
For each other card named Cardboard Carapace you have with you outside the game, enchanted creature gets +1/+1.

Whenever this Vehicle attacks, create a Treasure token.
Crew 1

Whenever this creature attacks, you may pay . If you do, create a 2/2 green Boar creature token that's tapped and attacking.

Target player draws four cards, then discards three cards. If you cast this spell during your main phase, instead that player draws four cards, then discards two cards.

Enchant artifact or creature
As long as enchanted permanent is a creature, it gets +1/+3 and has reach and ": Add ."
Channel — , Discard this card: Create a 1/1 green Human Monk creature token with ": Add ."

Draw two cards, then discard two cards.

, Sacrifice a creature: Prevent the next 1 damage that would be dealt to any target this turn.

When this creature dies, it deals 2 damage to target creature or planeswalker an opponent controls.

Target player draws three cards, loses 3 life, and gets three poison counters.

Care for yourself and your allies by gaining life.

(Gain the next level as a sorcery to add its ability.)
Whenever one or more tokens you control enter, draw a card. This ability triggers only once each turn.
: Level 2
When this Class becomes level 2, create a token that's a copy of target token you control.
: Level 3
Creature tokens you control get +2/+2.

Flying, vigilance
: Add . Spend this mana only to cast an artifact spell or activate an ability of an artifact source.
Crew 1

Enchant land you control
Enchanted land has ", : Create a 0/1 white Caribou creature token."
Sacrifice a Caribou token: You gain 1 life.

Flying
Whenever a player sacrifices a permanent, put a +1/+1 counter on Carmen and you gain 1 life.
Whenever Carmen attacks, return up to one target permanent card with mana value less than or equal to Carmen's power from your graveyard to the battlefield.

, Sacrifice a creature: Draw a card.

Trample
When Carnage enters, return target creature card with mana value 3 or less from your graveyard to the battlefield. It gains "This creature attacks each combat if able" and "When this creature deals combat damage to a player, sacrifice it."
Mayhem

Whenever a creature blocks, that creature's controller loses 1 life.
: Regenerate this creature.

When this creature enters, discard your hand, then investigate four times.
As long as you have one or fewer cards in hand, this creature gets +2/+2 and has menace.

This spell can't be countered.
Trample, hexproof

Bloodthirst 3
Trample

Trample
: Regenerate this creature.

: Add . If that mana is spent on a Dragon creature spell, it gains haste until end of turn.

Flying
This creature enters with two -1/-1 counters on it.
, Remove a -1/-1 counter from this creature: Put a -1/-1 counter on each other creature.

: You have thirty seconds to laud a creature you control to any people outside the game. Until end of turn, that creature gains trample and haste and gets +X/+0, where X is the number of those people who applauded. Activate only as a sorcery and only once.

Carnival deals 1 damage to target creature or planeswalker and 1 damage to that permanent's controller.

Carnage deals 3 damage to target opponent. That player discards two cards.