Add for each Goblin on the battlefield.

Create a Treasure token. (It's an artifact with ", Sacrifice this token: Add one mana of any color.")
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Flying
Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Magma Spray deals 2 damage to target creature. If that creature would die this turn, exile it instead.

Haste
Equipped creature gets +1/+1 and has haste.
Reconfigure (: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)

Destroy target nonblack creature. It can't be regenerated. You lose life equal to that creature's toughness.

Put a +1/+1 counter, a reach counter, and a deathtouch counter on target creature. Untap it.

Destroy target artifact or enchantment with mana value 4 or less.

, Sacrifice a creature: Target creature gets -1/-1 until end of turn.

Lifelink
Embalm (, Exile this card from your graveyard: Create a token that's a copy of it, except it's a white Zombie Cat with no mana cost. Embalm only as a sorcery.)

: This creature gets +1/+0 until end of turn.

Flying (This creature can't be blocked except by creatures with flying or reach.)
: Regenerate this creature. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

Enchant creature
Enchanted creature gets +1/+1.
When enchanted creature dies, return that card to its owner's hand.

, Sacrifice this artifact: Draw a card.
, Sacrifice this artifact: Return target creature to its owner's hand. Draw a card. Activate only as a sorcery.

: Target creature you control gains protection from the color of your choice until end of turn.

Equipped creature has ": This creature deals 1 damage to any target."
Equip (: Attach to target creature you control. Equip only as a sorcery.)

At the beginning of your upkeep, you gain 1 life.
, Sacrifice this artifact: Draw a card.

Whenever a Goblin you control enters, you may put a quest counter on this enchantment.
As long as this enchantment has five or more quest counters on it, creatures you control get +2/+0.

Target player mills two cards.
Draw a card.

Target creature gets +1/+0 until end of turn.
Draw a card.

Whenever another red creature you control enters, this creature gets +1/+0 until end of turn.

When this artifact enters, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)
, Sacrifice this artifact: Draw two cards.

(Gain the next level as a sorcery to add its ability.)
You have no maximum hand size.
: Level 2
When this Class becomes level 2, draw two cards.
: Level 3
Whenever you draw a card, put a +1/+1 counter on target creature you control.

Counter target noncreature spell. Its controller creates two Treasure tokens. (They're artifacts with ", Sacrifice this token: Add one mana of any color.")

, : Untap another target artifact.
, : Target creature can't be blocked this turn.

: Look at the top three cards of your library, then put them back in any order.
: Draw a card, then put this artifact on top of its owner's library.

Level up (: Put a level counter on this. Level up only as a sorcery.)
LEVEL 1-2
2/2
Flying
LEVEL 3+
4/2
Flying

Counter target instant spell.

Equipped creature has ", Unattach Shuriken: Shuriken deals 2 damage to target creature. That creature's controller gains control of Shuriken unless it was unattached from a Ninja."
Equip (: Attach to target creature you control. Equip only as a sorcery.)

Reckless Rage deals 4 damage to target creature you don't control and 2 damage to target creature you control.

Sacrifice this enchantment: It deals 2 damage to any target.

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

Equipped creature gets +1/+1 and has trample and lifelink.
: Permanents your opponents control lose hexproof and indestructible until end of turn.
Equip

Equipped creature gets +2/+2 and can't block.
Equip (: Attach to target creature you control. Equip only as a sorcery.)