Changeling (This card is every creature type.)
: This creature gets +1/+1 until end of turn.

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for .)
Draw three cards.

At the beginning of each player's upkeep, that player sacrifices a nonland, nontoken permanent of their choice. If that player can't, they discard a card, they lose 2 life, you draw a card, you gain 2 life, you create a 2/2 white Knight creature token with vigilance, then you sacrifice this enchantment.

Whenever you cast an instant spell, you may pay . If you do, draw a card.

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

Choose up to two target creature cards in your graveyard. An opponent chooses one of them. Return that card to your hand. Return the other to the battlefield under your control. It gains haste. Exile it at the beginning of the next end step.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Enchant creature
When this Aura enters, you gain 3 life.
Enchanted creature has flying.
: Put this Aura on top of its owner's library.

Enchant creature
When this Aura enters, tap enchanted creature.
Enchanted creature doesn't untap during its controller's untap step.
Enchanted creature has ": Untap this creature."

Enchant creature
Enchanted creature can't attack or block, and its activated abilities can't be activated.

, , Sacrifice this artifact: It deals 3 damage to target creature.

Sacrifice this enchantment: Destroy target artifact or enchantment.

Exile the top thirteen cards of your library, then search your library for a card. Put that card into your hand, then shuffle.

, Sacrifice a creature: Create two Treasure tokens. (They're artifacts with ", Sacrifice this token: Add one mana of any color.")
Sacrifice three Treasures: Draw a card.

Enchant creature
Enchanted creature can't attack or block unless its controller pays for each card in your hand.

, Sacrifice this enchantment: Target opponent exiles two cards from their hand. Activate only as a sorcery.

Blaze deals X damage to any target.

Haste
Whenever this creature becomes blocked, it deals 1 damage to target creature blocking it.

Landfall — Whenever a land you control enters, this creature gets +4/+4 and gains trample until end of turn. (It can deal excess combat damage to the player or planeswalker it's attacking.)

This land enters tapped. As it enters, choose a color other than white.
: Add or one mana of the chosen color.

Exile target artifact or enchantment. If you cast this spell during your main phase, you may exile up to one other target artifact or enchantment.