Search your library for an instant card or a card with flash, reveal it, put it into your hand, then shuffle.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Target opponent discards two cards. If fewer than two cards were discarded this way, you draw cards equal to the difference.
Foretell (During your turn, you may pay and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

Affinity for artifacts (This spell costs less to cast for each artifact you control.)

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)
Draw two cards.

: Target creature can't be blocked this turn.

Vigilance
Eternalize (, Exile this card from your graveyard: Create a token that's a copy of it, except it's a 4/4 black Zombie Human Cleric with no mana cost. Eternalize only as a sorcery.)

, Sacrifice this creature: Create a 1/1 green Insect creature token with flying named Butterfly at the beginning of the next end step.

Trample
Each creature you control with a +1/+1 counter on it has trample.

Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.)

Flying
Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)
When this creature is turned face up, target creature you control gains protection from the color of your choice until end of turn.

Flying

Lightning Javelin deals 3 damage to any target. Scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Defender
, : This creature deals damage to target player or planeswalker equal to the number of creatures you control with defender.

Flying

When this creature enters, mill four cards.

Whenever this creature attacks, if defending player has two or fewer cards in hand, it gains flying until end of turn.

Create two 2/2 black Zombie creature tokens.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

This spell costs less to cast for each creature you attacked with this turn.
When this creature enters, draw a card.

Put a -1/-1 counter on target creature.
Draw a card.

Solar Blast deals 3 damage to any target.
Cycling (, Discard this card: Draw a card.)
When you cycle this card, you may have it deal 1 damage to any target.

When this creature enters, destroy target creature with defender.

Delirium — This creature gets +1/+1 and has trample as long as there are four or more card types among cards in your graveyard.

At the beginning of combat on your turn, you may have target creature get +2/+0 until end of turn.

When this creature enters, create a 1/1 green Elf Warrior creature token.

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
When this creature enters, return target enchantment card from your graveyard to your hand.

Flying
Sacrifice a land: Return this creature to its owner's hand.

Flying
Whenever this creature becomes the target of a spell or ability for the first time each turn, counter that spell or ability.

Fabricate 1 (When this creature enters, put a +1/+1 counter on it or create a 1/1 colorless Servo artifact creature token.)

Landfall — Whenever a land you control enters, this creature gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

Destroy target creature. It can't be regenerated.

Vigilance (Attacking doesn't cause this creature to tap.)
When this creature enters, create a 2/2 white Knight creature token with vigilance.

Flying
Council's dilemma — When this creature enters, starting with you, each player votes for feather or quill. Put a +1/+1 counter on this creature for each feather vote and draw a card for each quill vote. For each card drawn this way, discard a card.