When Induced Amnesia enters the battlefield, target player exiles all cards from their hand face down, then draws that many cards.
When Induced Amnesia is put into a graveyard from the battlefield, return the exiled cards to their owner's hand.

When Isolation Zone enters the battlefield, exile target creature or enchantment an opponent controls until Isolation Zone leaves the battlefield. (That permanent returns under its owner's control.)

[+2]: Look at the top card of target player's library. You may put that card on the bottom of that player's library.
[0]: Draw three cards, then put two cards from your hand on top of your library in any order.
[−1]: Return target creature to its owner's hand.
[−12]: Exile all cards from target player's library, then that player shuffles their hand into their library.

Jeska, Thrice Reborn enters the battlefield with a loyalty counter on it for each time you've cast a commander from the command zone this game.
[0]: Choose target creature. Until your next turn, if that creature would deal combat damage to one of your opponents, it deals triple that damage to that player instead.
[−X]: Jeska, Thrice Reborn deals X damage to each of up to three targets.
Jeska, Thrice Reborn can be your commander.
Partner (You can have two commanders if both have partner.)

[0]: Exile Kaya, Ghost Assassin or up to one target creature. Return that card to the battlefield under its owner's control at the beginning of your next upkeep. You lose 2 life.
[−1]: Each opponent loses 2 life and you gain 2 life.
[−2]: Each opponent discards a card and you draw a card.

[+1]: Exile up to two target cards from a single graveyard. You gain 2 life if at least one creature card was exiled this way.
[−1]: Exile target nonland permanent with converted mana cost 1 or less.
[−5]: Kaya, Orzhov Usurper deals damage to target player equal to the number of cards that player owns in exile and you gain that much life.

Vigilance, haste
Kelsien, the Plague gets +1/+1 for each experience counter you have.
: Kelsien deals 1 damage to target creature you don't control. When that creature dies this turn, you get an experience counter.

Trample
Other creatures you control have trample.

Enchant permanent
You control enchanted permanent.
Cycling (, Discard this card: Draw a card.)

[+1]: Create a 2/2 black Zombie creature token. Mill two cards.
[−3]: Return target creature card from your graveyard to the battlefield. That creature is a black Zombie in addition to its other colors and types.
[−7]: Destroy all non-Zombie creatures.

Whenever a creature you control dies, draw a card.
[+1]: Create a 2/2 black Zombie creature token.
[−4]: Each player sacrifices two creatures.
[−9]: Each opponent chooses a permanent they control of each permanent type and sacrifices the rest.

[+1]: Exile the top three cards of your library. Creature cards exiled this way gain "You may cast this card from exile as long as you control a Lukka planeswalker."
[−2]: Exile target creature you control, then reveal cards from the top of your library until you reveal a creature card with higher converted mana cost. Put that card onto the battlefield and the rest on the bottom of your library in a random order.
[−7]: Each creature you control deals damage equal to its power to each opponent.

Cast this spell only during combat.
Your opponents can't cast spells this turn.
End the combat phase. (Remove all attackers and blockers from combat. Exile all spells and abilities from the stack, including this spell.)

When Marchesa's Decree enters the battlefield, you become the monarch.
Whenever a creature attacks you or a planeswalker you control, that creature's controller loses 1 life.

Menace
When Massacre Girl enters the battlefield, each other creature gets -1/-1 until end of turn. Whenever a creature dies this turn, each creature other than Massacre Girl gets -1/-1 until end of turn.

Enchant creature
Enchanted creature gets -3/-3.

Flash (You may cast this spell any time you could cast an instant.)
When Mizzium Meddler enters the battlefield, you may change a target of target spell or ability to Mizzium Meddler.

Exile target instant or sorcery card from a graveyard. Copy that card three times. You may cast the copies without paying their mana costs. Exile Mnemonic Deluge.

[+2]: Untap up to two target creatures and up to two target lands.
[−3]: Target creature gets +5/+5 until end of turn.
[−10]: Look at the top ten cards of your library. You may put any number of creature and/or land cards from among them onto the battlefield. Put the rest on the bottom of your library in a random order.

Whenever you tap a Forest for mana, add an additional .
[+1]: Put three +1/+1 counters on up to one target noncreature land you control. Untap it. It becomes a 0/0 Elemental creature with vigilance and haste that's still a land.
[−8]: You get an emblem with "Lands you control have indestructible." Search your library for any number of Forest cards, put them onto the battlefield tapped, then shuffle your library.