Creatures you control have haste.
Sacrifice this enchantment: Target creature gets +2/+2 until end of turn.

, Sacrifice a Goblin: This creature deals 4 damage to target creature.

Flying
This creature enters with a -1/-1 counter on it.

Whenever you cast a noncreature spell, you may pay . If you do, create a 1/1 red Goblin creature token with haste.

Target creature you control gets +1/+1 until end of turn. It deals damage equal to its power to target creature you don't control.

Destroy all green creatures. They can't be regenerated.

Whenever this creature or another Elemental you control enters, look at the top card of your library. If it's a land card, you may put it onto the battlefield tapped. If you don't put the card onto the battlefield, put it into your hand.

Acidic Soil deals damage to each player equal to the number of lands they control.

Destroy target creature. If you control an artifact, Unlicensed Disintegration deals 3 damage to that creature's controller.

Reveal cards from the top of your library until you reveal a land card. Put that card onto the battlefield and the rest on the bottom of your library in any order. Clash with an opponent. If you win, return Recross the Paths to its owner's hand. (Each clashing player reveals the top card of their library, then puts that card on their choice of the top or bottom. A player wins if their card had a greater mana value.)

As this artifact enters, choose a color.
Creatures you control of the chosen color get +1/+0.
: Add one mana of the chosen color.

Artifact and enchantment spells your opponents cast cost more to cast.
Sacrifice this enchantment: Destroy target artifact or enchantment.

Whenever you draw a card, each opponent mills two cards.

Whenever a creature attacks you, it gets -1/-0 until end of turn.

When this creature enters, you may search your library for a Goblin card, reveal that card, put it into your hand, then shuffle.

At the beginning of your upkeep, each player may put two +1/+1 counters on a creature they control. If a player does, creatures that player controls can't attack you or planeswalkers you control until your next turn.

At the beginning of your upkeep, this creature deals 1 damage to each creature and each player.
When this creature dies, it deals 1 damage to each creature and each player.

Whenever an opponent is dealt 3 or more damage by a single source, that player discards a card.

Counter target creature spell.
Draw a card.

: Add . Put a stash counter on this artifact.
, Sacrifice this artifact: Add X mana of any one color, where X is the number of stash counters on this artifact.

Exile the top three cards of your library. Until end of turn, you may play those cards. (If you cast a spell this way, you still pay its costs. You can play a land this way only if you have an available land play remaining.)

, : Double the number of each kind of counter on target permanent. ( is the untap symbol.)

Flash
Flying
If an opponent would search a library, that player searches the top four cards of that library instead.

Target opponent reveals cards from the top of their library until four land cards are revealed. That player puts all cards revealed this way into their graveyard.

Gain control of target creature until end of turn. Put a +1/+1 counter on it and untap it. That creature gains haste until end of turn. (It can attack and this turn.)

Staggershock deals 2 damage to any target.
Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)

When a creature you control dies, sacrifice this enchantment. If you do, create four 1/1 colorless Spirit creature tokens.

Flying
Whenever you cast a spell from anywhere other than your hand, draw a card.

Each enchantment deals 2 damage to its controller, then each Aura attached to a creature deals 2 damage to the creature it's attached to.

: This creature deals 1 damage to any target. Activate only during your turn, before attackers are declared.

, Sacrifice this creature: Destroy target artifact or enchantment.

All Sliver creatures have ": This creature gets +1/+1 until end of turn."

All Slivers have "When this permanent enters, destroy target artifact or enchantment."

Whenever you get one or more (energy counters), put a +1/+1 counter on target creature you control.
, : You get .

Target creature gets -4/-0 until end of turn.
Draw a card.
Addendum — If you cast this spell during your main phase, tap that creature and it doesn't untap during its controller's next untap step.