Sacrifice a land: You gain 2 life.

: Add .
: This land becomes a 2/2 Assembly-Worker artifact creature until end of turn. It's still a land.
: Target Assembly-Worker creature gets +1/+1 until end of turn.

, Sacrifice this artifact: Look at a card at random in target player's hand. You draw a card at the beginning of the next turn's upkeep.

Enchant Wall
Enchanted Wall can attack as though it didn't have defender.

Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
Whenever an opponent casts a noncreature spell, you may draw a card unless that player pays .

Dwarven Catapult deals X damage divided evenly, rounded down, among all creatures target opponent controls.

As an additional cost to cast this spell, sacrifice a Goblin.
Goblin Grenade deals 5 damage to any target.

Psychic Purge deals 1 damage to any target.
When a spell or ability an opponent controls causes you to discard this card, that player loses 5 life.

Until end of turn, whenever a player taps an Island for mana, that player adds an additional .

Tap X target creatures. Winter Blast deals 2 damage to each of those creatures with flying.

Each player shuffles the cards from their hand into their library, then draws that many cards.

Whenever Spectral Bears attacks, if defending player controls no black nontoken permanents, it doesn't untap during your next untap step.

: The next time a black or red source of your choice would deal damage to you this turn, prevent that damage.

Look at the top five cards of your library. As many times as you choose, you may pay 1 life, put those cards on the bottom of your library in any order, then look at the top five cards of your library. Then shuffle and put the last cards you looked at this way on top in any order.

Haste
At the beginning of your upkeep, if this card is in your graveyard with three or more creature cards above it, you may put this card onto the battlefield.

, Sacrifice a blue creature: Create X 1/1 blue Camarid creature tokens, where X is the sacrificed creature's mana value.

Untap any number of target creatures. Prevent all combat damage that would be dealt to and dealt by those creatures this turn.

At the beginning of each player's upkeep, this artifact deals 1 damage to that player.

Enchant creature card in a graveyard
When this Aura enters, if it's on the battlefield, it loses "enchant creature card in a graveyard" and gains "enchant creature put onto the battlefield with this Aura." Return enchanted creature card to the battlefield under your control and attach this Aura to it. When this Aura leaves the battlefield, that creature's controller sacrifices it.
Enchanted creature gets -1/-0.

First strike (This creature deals combat damage before creatures without first strike.)
Protection from white (This creature can't be blocked, targeted, dealt damage, or enchanted by anything white.)

: Prevent the next 1 damage that would be dealt to you this turn.

Enchant land
When enchanted land becomes tapped, destroy it.

: Return target nonsnow land you control to its owner's hand.

At the beginning of your upkeep, sacrifice this enchantment unless you pay .
Blue creatures get +1/+1.

Target player discards two cards at random.

As an additional cost to cast this spell, pay X life.
Fire Covenant deals X damage divided as you choose among any number of target creatures.

Flying, first strike

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

First strike
This creature can't attack unless defending player controls an Island.
When you control no Islands, sacrifice this creature.
: This creature gains flying until end of turn.

Destroy target land.

When this creature leaves the battlefield, sacrifice a land and this creature deals 1 damage to you.

: This creature deals 1 damage to target creature with flying.

, Sacrifice an artifact: This creature deals 2 damage to any target.

Destroy all Goblins.

: Destroy target blue creature.

When you control no Islands, sacrifice this creature.
You may choose not to untap this creature during your untap step.
: Gain control of target creature whose controller controls an Island for as long as you control this creature and this creature remains tapped.