Weird Insight — When this creature dies, roll a d20. 1—9 | You draw a card and you lose 1 life. 10—19 | You draw two cards and you lose 2 life. 20 | You draw seven cards and you lose 7 life.
As long as this Equipment is attached to a creature, you don't lose the game for having 0 or less life. Whenever equipped creature attacks, draw a card and reveal it. The creature gets +X/+X until end of turn and you lose X life, where X is that card's mana value. Equip—Discard a card.
Lifelink When this creature enters, you take the initiative. At the beginning of your end step, if you have the initiative, put a +1/+1 counter on this creature.
When this creature enters, you take the initiative. If a creature an opponent controls would die, instead exile it and put a hit counter on it. Whenever this creature attacks, if you've completed a dungeon, defending player loses 1 life for each card they own in exile with a hit counter on it.
Menace At the beginning of your end step, if you have the initiative, create a Treasure token. Create three of those tokens instead if you've completed a dungeon. Choose a Background
At the beginning of each player's end step, if no permanents left the battlefield this turn, that player loses X life, where X is Sarevok's power. Choose a Background
Commander creatures you own have "The first time you would draw a card each turn, instead look at the top two cards of your library. Put one of them into your graveyard and the other back on top of your library. Then draw a card."
Most see the Mad Mage as a deranged menace, but you recognize the genius behind his paranoia.
At the beginning of combat on your turn, mill a card. When you do, if there are four or more creature cards in your graveyard, put a +1/+1 counter on target creature you control and it gains deathtouch until end of turn.
{T}, Sacrifice another creature or an artifact: For each opponent, you mill a card, then return that card from your graveyard to your hand unless that player pays 3 life. Choose a Background
When this creature enters, you take the initiative. Spiked Retribution — Whenever this creature becomes blocked by a creature, that creature's controller loses 5 life.
At the beginning of your upkeep, if there are four or more creature cards in your graveyard, return a creature card at random from your graveyard to your hand. Choose a Background