{2}{U}, {T}: Target player draws a card, then exiles a card from their hand. If a creature card is exiled this way, that player creates a token that's a copy of that card. When this creature leaves the battlefield, exile all tokens created with it at the beginning of the next end step.

{T}: Draw three cards. {2}{U}{U}: Return Arcanis to its owner's hand.

{T}: Draw a card.

Changeling (This card is every creature type.) As this creature enters, choose a creature type. Whenever another creature you control of the chosen type enters, put a +1/+1 counter on this creature.

Body of Knowledge's power and toughness are each equal to the number of cards in your hand. You have no maximum hand size. Whenever this creature is dealt damage, draw that many cards.

Defender, haste {T}: Draw a card, then discard a card.

Counter target spell. Its controller may draw up to two cards at the beginning of the next turn's upkeep. You draw a card at the beginning of the next turn's upkeep.

Choose one — • Counter target spell. • Target player draws two cards. • Gain control of target nonland permanent with mana value 1 or less.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Choose one or both — • Counter target spell. • Draw two cards, then discard a card.

Counter target spell. If that spell targets a commander you control, instead counter that spell, scry 2, then draw a card.