Enchant creature
Enchanted creature gets +2/+2 and can't attack.

Threshold — As long as there are seven or more cards in your graveyard, this enchantment has "Whenever an opponent casts a spell, you may put a creature card from your hand onto the battlefield."

Target player shuffles up to two target cards from their graveyard into their library.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Damage can't be prevented this turn.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Enchant creature
Enchanted creature can't attack or block, and its activated abilities can't be activated. Its controller may exile three cards from their graveyard for that player to ignore this effect until end of turn.

When this creature enters, put a +1/+1 counter on target creature.

Any player may have Book Burning deal 6 damage to them. If no one does, target player mills six cards.

Target creature gets +1/+0 and gains first strike until end of turn.
Draw a card.

Create X 1/1 red Elemental Cat creature tokens with haste. Exile them at the beginning of the next end step.
Flashback—, Sacrifice X Mountains. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

When this creature enters, exile a land you control.
When this creature leaves the battlefield, return the exiled card to the battlefield under its owner's control.

Enchant creature
Enchanted creature gets +X/+X, where X is the number of creature cards in all graveyards.

Counter target spell cast from a graveyard.
Draw a card.

Whenever a Bird is put into your graveyard from the battlefield, put a feather counter on this enchantment.
Bird creatures get +1/+1 for each feather counter on this enchantment.

Return target creature card from your graveyard to your hand.
Threshold — Return that card from your graveyard to the battlefield instead if there are seven or more cards in your graveyard.

Look at the top X cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order.
Flashback—, Exile X blue cards from your graveyard. (You may cast this card from your graveyard for its flashback cost, then exile it. You can't exile Flash of Insight to pay for its own flashback cost.)

Creatures you control get +0/+2 until end of turn.
Threshold — If there are seven or more cards in your graveyard, choose a color. Creatures you control also gain protection from the chosen color until end of turn.

Discard a card: This creature gains shroud until end of turn and can't be blocked this turn. (A creature with shroud can't be the target of spells or abilities.)

: Return target card from an opponent's graveyard to their hand. Prevent all damage that would be dealt to any target this turn by a source of your choice.

This creature enters with two +1/+1 counters on it.
If damage would be dealt to this creature, prevent that damage. Remove a +1/+1 counter from this creature.

Threshold — This creature gets +2/+2 as long as there are seven or more cards in your graveyard.

: Return two target cards from an opponent's graveyard to their hand. Destroy target artifact or enchantment.

Enchant creature (Target a creature as you cast this. This card enters attached to that creature.)
Enchanted creature gets +2/+2 and has ": This creature deals 1 damage to any target."

: Return three target cards from an opponent's graveyard to their hand. Return target creature card from your graveyard to the battlefield.

At the beginning of combat on each opponent's turn, that player may exile a card from their graveyard. If the player doesn't, creatures they control can't attack you this turn.

, : Put target Aura card from a graveyard onto the battlefield under your control attached to a creature you control.

Tap an untapped Dwarf you control: Target creature gets +2/+0 until end of turn.

Enchant creature
When this Aura enters, draw a card.
Enchanted creature has protection from creatures.

Any player may have Browbeat deal 5 damage to them. If no one does, target player draws three cards.

You gain 1 life for each creature you control.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Any player may have Breaking Point deal 6 damage to them. If no one does, destroy all creatures. Creatures destroyed this way can't be regenerated.

You may put a card you own from outside the game into your hand. You lose half your life, rounded up. Exile Death Wish.

Enchant creature
Enchanted creature gets +3/+3.
When enchanted creature dies, create a 3/3 green Elephant creature token.

When this creature enters, exile a land you control.
When this creature leaves the battlefield, return the exiled card to the battlefield under its owner's control.

Trample
This creature enters with two +1/+1 counters on it.
If damage would be dealt to this creature, prevent that damage. Remove a +1/+1 counter from this creature.
: Put a +1/+1 counter on this creature.

Whenever this creature deals combat damage to a player, return up to that many target permanents that player controls to their owner's hand.

Draw a card for each attacking creature.