Changeling (This card is every creature type.)
Flash
Flying
When this creature enters, return up to one other target creature you control to its owner's hand.

Vigilance
When this creature enters, look at the top three cards of your library, then put one of them into your hand and the rest on the bottom of your library in any order.
When this creature enters, sacrifice it unless was spent to cast it.

Flying
When this creature enters, each opponent discards a card.

Each player discards their hand, then draws cards equal to the greatest number of cards a player discarded this way.

Flying
Whenever this creature attacks, look at the top four cards of your library. You may reveal a Cleric card, a Rogue card, a Warrior card, and/or a Wizard card from among them and put those cards into your hand. Put the rest on the bottom of your library in a random order.

At the beginning of combat on your turn, you may discard a card. If you do, choose a creature. Whenever that creature deals combat damage to a player this turn, you draw two cards.

Destroy target permanent. Its controller creates a 3/3 green Beast creature token.

When this enchantment enters, exile target nonland permanent an opponent controls until this enchantment leaves the battlefield.

Flash (You may cast this spell any time you could cast an instant.)
Flying
Exploit (When this creature enters, you may sacrifice a creature.)
When this creature exploits a creature, counter target creature spell.

Trample
Whenever this creature attacks, it gets +1/+0 until end of turn for each land defending player controls.
Encore (, Exile this card from your graveyard: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate only as a sorcery.)

For each creature, its controller sacrifices a permanent of their choice unless they pay .

: Target creature other than this creature has base power and toughness 0/2 until end of turn.

Creatures and lands target opponent controls don't untap during their next untap step.

At the beginning of your upkeep, put two descent counters on this enchantment. Then each player creates X Treasure tokens and this enchantment deals X damage to each player, where X is the number of descent counters on this enchantment.

Level up (: Put a level counter on this. Level up only as a sorcery.)
LEVEL 1-2
2/3
: This creature deals 1 damage to any target.
LEVEL 3+
2/4
: This creature deals 3 damage to any target.

Flash
Tapped creatures you control can block as though they were untapped.

When this enchantment enters, create a 1/1 white Human Soldier creature token.
Whenever a creature you control dies, each opponent loses 1 life and you gain 1 life.

This creature gets +1/+2 as long as you have one or fewer cards in hand.

Flying
When this creature enters, you may return target creature card from your graveyard to your hand.

Whenever this creature attacks, it gets +2/+0 until end of turn.

Creatures you control have "Whenever this creature becomes blocked by a creature, this creature gets +1/+1 until end of turn."

: Add one mana of any color.
, , Sacrifice this artifact: Draw a card.

: Add .
As this artifact enters, you may have it become a copy of any creature on the battlefield until end of turn, except it has haste.

Vigilance (Attacking doesn't cause this creature to tap.)
When this creature enters, look at the top four cards of your library. You may reveal a creature card with power 2 or less from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Vigilance
When this creature enters, if an opponent controls more lands than you, you may search your library for a Plains card and put it onto the battlefield tapped. Then if an opponent controls more lands than you, repeat this process once. If you search your library this way, shuffle.

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

: Put a -1/-1 counter on this creature and a -1/-1 counter on target creature.

: Target opponent reveals a card at random from their hand. If it's an instant or sorcery card, exile it. You may cast it without paying its mana cost for as long as it remains exiled. At the beginning of the next end step, if you haven't cast it, return it to its owner's hand. Activate only as a sorcery.

Flying
When this creature enters, draw a card.

Create X 1/1 red Goblin creature tokens.

Flying, vigilance, lifelink

Vigilance (Attacking doesn't cause this creature to tap.)
Renown 2 (When this creature deals combat damage to a player, if it isn't renowned, put two +1/+1 counters on it and it becomes renowned.)

: This creature deals 3 damage to any target.

Landfall — Whenever a land you control enters, investigate. (Create a Clue token. It's an artifact with ", Sacrifice this token: Draw a card.")
Whenever you sacrifice a Clue, put a +1/+1 counter on this creature.

Defender (This creature can't attack.)
: Prevent the next 1 damage that would be dealt to any target this turn.

Return target creature card from your graveyard to your hand.
Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.)