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."

Flying
When this creature enters, sacrifice it unless you exile a creature you control other than this creature.
When this creature leaves the battlefield, return the exiled card to the battlefield under its owner's control.

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

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

Draw a card for each attacking creature.

Threshold — Swirling Sandstorm deals 5 damage to each creature without flying if there are seven or more cards in your graveyard.

Target creature gets +3/+3 until end of turn.
Draw a card.

Whenever this creature deals combat damage to a player, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Flying
Threshold — As long as there are seven or more cards in your graveyard, this creature gets +1/+1 and has first strike.

When this creature enters, each player discards a card.
Discard a card: Regenerate this creature.

Flying
When this creature enters, return target land to its owner's hand.

When this creature enters, discard a card at random.
When this creature leaves the battlefield, draw a card.

Destroy target enchanted permanent.

Defender (This creature can't attack.)
: This creature can attack this turn as though it didn't have defender.

Vigilance

Threshold — Put three cards from your graveyard on the bottom of your library: This creature gets +3/+3 until end of turn. Activate only once each turn and only if there are seven or more cards in your graveyard.

When this creature enters, it deals 4 damage to target player or planeswalker.

Trample

Ember Shot deals 3 damage to any target.
Draw a card.