At the beginning of your upkeep, you may choose a card type. If you do, each player sacrifices a permanent of their choice of that type.

, , Sacrifice this artifact: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.
, , Sacrifice this artifact: Search your library for a land card, reveal it, put it into your hand, then shuffle.

Double Overdrive — Equipped creature gets +2/+0 and has double strike.
Equip

Devoid
When you cast this spell, exile target artifact, enchantment, or land.
Reach
, Sacrifice a land: Return this card from your graveyard to your hand.

After the second main phase this turn, there's an additional combat phase followed by an additional main phase. At the beginning of that combat, untap all creatures that attacked this turn.
Rebound

Trample
When this creature enters, you gain 3 life.
When this creature dies, create a 4/4 green Rhino Warrior creature token.
Blitz

Artifact creatures you control have flying.
At the beginning of combat on your turn, you may have target noncreature artifact you control become a 0/0 artifact creature. If you do, put four +1/+1 counters on it.

When this creature dies, return another target artifact card from your graveyard to your hand.

As Working Stiff enters, straighten your arms.
When you bend an elbow, sacrifice Working Stiff.

This creature enters with four +1/+1 counters on it.
Remove a +1/+1 counter from this creature: Add .

Assemble two Contraptions. (Put the top card of your Contraption deck face up onto one of your sprockets. Then repeat this process.)

Whenever Worf attacks, for each attacking non-Faerie creature, create a tapped and attacking 1/1 blue Faerie creature token with flying.

Menace
Other Officers you control get +1/+1.
Seek out — Whenever you draw your second card each turn, create a 1/1 red Officer creature token.

When Worf enters, for each opponent, gain control of up to one target creature that player controls with mana value 3 or less until end of turn. Untap those creatures. Until end of turn, they become Warriors in addition to their other types and gain haste.

Whenever you attack while creatures you control have total power 8 or greater, double Worf's power until end of turn.
Tap two untapped artifacts and/or creatures you control: Put a +1/+1 counter on Worf. Activate only as a sorcery.

When Worf enters, create a 2/1 red Klingon Warrior creature token with haste.
Battlefront — Whenever you attack, exile the top X cards of your library, where X is the number of opponents you attacked this turn. Until the end of your next turn, you may play those cards.

: The next time you would draw a card this turn, you gain 5 life instead.

You draw two cards, then each other player draws a card.

: The next time you would draw a card this turn, each player returns a permanent they control to its owner's hand instead.

: The next time you would draw a card this turn, create a 2/2 green Bear creature token instead.

: The next time you would draw a card this turn, each opponent discards a card instead.

: The next time you would draw a card this turn, this enchantment deals 2 damage to any target instead.

Enchant creature
Enchanted creature gets +1/+1 for each word in its name.

Return target creature and all white Auras you own attached to it to their owners' hands.

Split second
Untap target permanent and gain control of it until end of turn. It gains haste until end of turn.

Look at target opponent's hand and choose a card from it. You control that player until Word of Command finishes resolving. The player plays that card if able. While doing so, the player can activate mana abilities only if they're from lands that player controls and only if mana they produce is spent to activate other mana abilities of lands the player controls and/or to play that card. If the chosen card is cast as a spell, you control the player while that spell is resolving.

Destroy target Wall. It can't be regenerated. Word of Blasting deals damage equal to that Wall's mana value to the Wall's controller.