An opponent chooses one —
• You put a +1/+1 counter on each creature you control and gain 4 life.
• You put a -1/-1 counter on each creature that player controls and Misfortune deals 4 damage to that player.

Trample
When Maximus enters, you may search your library for an Equipment card with mana value 2, reveal it, put it into your hand, then shuffle.
, Sacrifice an artifact: You get (two energy counters).

Target creature gets -3/-3 until end of turn. Target player mills three cards. You gain 3 life.

Istvan attacks each combat if able.
Prevent all damage that would be dealt to Istvan by creatures.
Whenever a creature an opponent controls dies, put two +1/+1 counters on Istvan.

Whenever this creature deals damage to a player, destroy target permanent other than this creature with the most lines of text in its text box. (If two or more cards are tied, target any one of them.)

+1: Conjure a card named Kraken Hatchling into your hand.
+1: Untap target creature or land. Prevent all damage that would be dealt to and dealt by that permanent until your next turn.
−3: You may sacrifice a Kraken. If you do, create an 8/8 blue Kraken creature token.

This creature enters with two arms and two legs.
Whenever damage is dealt to this creature, remove an arm or a leg from it.
This creature can't attack if it has no legs and can't block if it has no arms.

Flying
, Sacrifice another artifact: This creature assembles a Contraption. (Put the top card of your Contraption deck face up onto one of your sprockets.)

Flying
Whenever you attack with one or more other creatures with flying, draw that many cards, then discard a card.

Blocking creatures gain first strike until end of turn.

At the beginning of your upkeep, sacrifice this enchantment unless you pay .
All Mountains are Plains.

Look at the top six cards of your library. You may put a creature card with mana value 3 or less from among them onto the battlefield, then conjure a duplicate of that card onto the battlefield. The duplicate perpetually has base power and toughness 1/1. Put the rest on the bottom of your library in a random order.

Flying
When Master of Winds enters, draw two cards, then discard a card.
Whenever you cast an instant, sorcery, or Wizard spell, you may have Master of Winds's base power and toughness become 5/1 or 1/5 until end of turn.

Slivers you control have hope. (Prevent all damage that would be dealt to attacking creatures with hope.)

Rulebreaker — If Tolabow, Loch Rascal is your commander, the color identity of instant and sorcery cards in your deck can include one color of your choice not in your commander's color identity, and your deck can have any basic land cards.
Whenever you cast an instant or sorcery spell, create a 1/1 blue and red Otter creature token with prowess. (Whenever you cast a noncreature spell, it gets +1/+1 until end of turn.)

Shuffle all cards in the game together and deal them into three decks. The game continues with a new player.

Counter target spell, then assemble a Contraption. (Put the top card of your Contraption deck face up onto one of your sprockets.)

Skeletons, Vampires, and Zombies you control get +1/+1.
At the beginning of your end step, if a creature died this turn, create a 1/1 black Skeleton creature token.

At the beginning of your end step, draw a card if your life total is greater than your starting life total. Otherwise, you gain 2 life and scry 1.

Freerunning (You may cast this spell for its freerunning cost if you dealt combat damage to a player this turn with an Assassin or commander.)
Menace (This creature can't be blocked except by two or more creatures.)
Other Assassins you control get +1/+1.

Reach
Other Spiders you control get +1/+2.
, Exile two cards from your graveyard: Draft a card from Ishkanah, Broodmother's spellbook.

Whenever you cast a spell, you may gain ½ life for each word in that spell's name.

Whenever The Madcap Jester attacks, each opponent exiles the top card of their library.
Whenever a spell or ability you control causes one or more cards to be exiled from an opponent's library, you may play those cards until the end of your next turn. Mana of any type can be spent to cast spells this way.

Vigilance
When Casal enters, search your library for a Forest card, put it onto the battlefield tapped, then shuffle.
Whenever Casal attacks, you may pay . If you do, transform her.

Look at the top four cards of your library. Put two of them into your hand and the rest into your graveyard. You lose 2 life.

Each spell you cast with a name printed in a Kamigawa expansion costs less to cast.
+2: Open up to one sealed Kamigawa booster pack and shuffle those cards into your booster pile. Look at the top four cards of your booster pile. Put two of those cards into your hand and the rest into your graveyard.
−3: Return a creature card with a name printed in a Kamigawa expansion from your graveyard to the battlefield.
Heroes of Kamigawa can be your commander.

Flying
Whenever a player attacks you, if that player has another opponent who isn't being attacked, prevent all combat damage that would be dealt to you this combat.

Shroud (This creature can't be the target of spells or abilities.)
Glimpse, the Unthinkable can't be chosen.
The name Glimpse, the Unthinkable can't be chosen.

When this creature enters, choose one —
• Another target Wolf or Werewolf you control fights target creature you don't control.
• You get a one-time boon with "When you cast a Wolf or Werewolf spell, it gains 'When this creature enters, it fights up to one target creature you don't control.'"

Enchant creature you control
Enchanted creature is a planeswalker in addition to its other types. Its toughness becomes its loyalty. (You change its toughness to activate loyalty abilities. Damage lowers toughness. Toughness doesn't heal at end of turn.) It can't block and gains the following abilities —
+1: Add .
−1: Exile the top card of your library. You may play it this turn.
−X: This planeswalker deals X damage to any target.

As an additional cost to cast this spell, you may pay any number of times.
You gain 3 life plus an additional 3 life for each additional you paid.

Alliance — Whenever another creature enters under your control, target creature an opponent controls can't block this turn. If this is the second time this ability has resolved this turn, that creature attacks during its controller's next combat phase if able.

Green creatures can't attack unless their controller sacrifices a land of their choice for each green creature they control that's attacking. (This cost is paid as attackers are declared.)

Deal Damage deals 4 damage to any target.
Gotcha — If an opponent says "deal" or "damage," you may say "Gotcha!" When you do, return Deal Damage from your graveyard to your hand.

Whenever a player casts an artifact, instant, or sorcery spell, you create a Mutagen token. (It's an artifact with ", , Sacrifice this token: Put a +1/+1 counter on target creature. Activate only as a sorcery.")

When Stimulus Package enters, create two Treasure tokens. (They're artifacts with ", Sacrifice this artifact: Add one mana of any color.")
Sacrifice a Treasure: Create a 1/1 green and white Citizen creature token. Scry 1.