Choose target spell or permanent that's red or green. Its owner puts it on their choice of the top or bottom of their library.

This spell can't be countered. Counter target noncreature spell.

Each player can't cast more than one spell each turn. {4}{R}, Sacrifice this enchantment: It deals 5 damage to any target.

This spell costs {2} less to cast if it targets a red creature. Knockout Blow deals 4 damage to target attacking or blocking creature and you gain 2 life.

This spell can't be countered. Destroy all creatures.

This spell can't be countered. Target opponent reveals their hand. Exile all noncreature, nonland cards from that player's hand and graveyard.

This land enters tapped unless you control a Plains. {T}: Add {W}. {2}{W}{W}, {T}: Create a 1/1 white Human creature token.

Counter target spell unless its controller pays {1}. Cycling {U} ({U}, Discard this card: Draw a card.)

Draw a card. Investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this token: Draw a card.")

Choose one — • Counter target artifact or enchantment spell. If a spell is countered this way, exile it instead of putting it into its owner's graveyard. • Counter target activated or triggered ability.

During your turn, this spell costs {2}{U}{U} less to cast. End the turn. (Exile all spells and abilities from the stack, including this card. The player whose turn it is discards down to their maximum hand size. Damage wears off, and "this turn" and "until end of turn" effects end.)

Destroy all creatures. Foretell {1}{W}{W} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

Flying, lifelink Whenever you draw a card, this creature gets +1/+0 until end of turn. Whenever this creature attacks, draw a card. Discard a card: This creature gains hexproof until end of turn. Tap it.

Flash Whenever a creature you control deals combat damage to a player, draw a card. When Enduring Curiosity dies, if it was a creature, return it to the battlefield under its owner's control. It's an enchantment. (It's not a creature.)

Spree (Choose one or more additional costs.) + {1} — All creatures lose all abilities until end of turn. + {1} — Choose a creature you control. It gains indestructible until end of turn. + {3}{W}{W} — Destroy all creatures.

{T}: Add {C}. {2}, {T}, Sacrifice a token: Draw a card. {3}, {T}, Pay 1 life: Create a 1/1 blue Fish creature token. {4}, {T}: Create a Treasure token.

Flash This spell can't be countered. Whenever you cast a spell, choose up to one — • Return target spell you don't control to its owner's hand. • Return target nonland permanent to its owner's hand.

Flash When this creature enters, choose one — • Put a +1/+1 counter on this creature for each creature that left the battlefield under your control this turn. • You gain 2 life and scry 2. • Exile target player's graveyard.

If this card is in your opening hand, you may begin the game with it on the battlefield. You have hexproof. (You can't be the target of spells or abilities your opponents control.)

{T}, Put a page counter on this artifact: Scry 1. (Look at the top card of your library. You may put that card on the bottom.) {2}, {T}, Put a page counter on this artifact: Draw a card. When there are four or more page counters on this artifact, exile it. If you do, you gain 4 life.

This spell costs {2} less to cast if it targets a blue spell. Counter target spell unless its controller pays {3}.

Counter target spell unless its controller pays {3}. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.

When this artifact enters, exile target nonland permanent an opponent controls with mana value 2 or less until this artifact leaves the battlefield.

Exile all attacking creatures target player controls. That player may search their library for that many basic land cards, put those cards onto the battlefield tapped, then shuffle.

Counter target activated ability, triggered ability, or legendary spell.