You may reveal this card from your opening hand. If you do, at the beginning of the first upkeep, each opponent loses 3 life, then you gain life equal to the life lost this way. Flying, lifelink

When Sleeper Agent enters the battlefield, target opponent gains control of it. At the beginning of your upkeep, Sleeper Agent deals 2 damage to you.

Whenever you lose life for the first time each turn, you get {E}. (You get an energy counter. Damage causes loss of life.) Pay {E}{E}, Sacrifice Gonti's Machinations: Each opponent loses 3 life. You gain life equal to the life lost this way.

When Hopeless Nightmare enters the battlefield, each opponent discards a card and loses 2 life. When Hopeless Nightmare is put into a graveyard from the battlefield, scry 2. {2}{B}: Sacrifice Hopeless Nightmare.

Choose one — • Exile target player's graveyard. • Destroy target artifact. • Each creature deals 1 damage to its controller.

When Aether Hub enters the battlefield, you get {E} (an energy counter). {T}: Add {C}. {T}, Pay {E}: Add one mana of any color.

{T}: Add one mana of any color. Whenever you tap Forbidden Orchard for mana, target opponent creates a 1/1 colorless Spirit creature token.

({T}: Add {B} or {R}.) Smoldering Marsh enters the battlefield tapped unless you control two or more basic lands.

Target opponent loses 3 life. Flashback {5}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Escalate—Discard a card. (Pay this cost for each mode chosen beyond the first.) Choose one or more — • Target opponent reveals their hand. You choose an instant or sorcery card from it. That player discards that card. • Target creature gets -2/-2 until end of turn. • Target opponent loses 2 life and you gain 2 life.

Return target nonlegendary creature card from your graveyard to the battlefield with a -1/-1 counter on it.

When you cast this spell, any player may pay 5 life. If a player does, counter Dash Hopes. Counter target spell.

Target opponent reveals their hand. You choose a noncreature, nonland card from it. That player discards that card.

Menace (This creature can't be blocked except by two or more creatures.) Your opponents can't gain life. {1}{B}: Knight of Dusk's Shadow gets +1/+1 until end of turn.

If an opponent gained life this turn, you may pay {B} rather than pay this spell's mana cost. Target player loses 5 life and you gain 5 life.

As Pithing Needle enters the battlefield, choose a card name. Activated abilities of sources with the chosen name can't be activated unless they're mana abilities.

Target opponent loses 3 life and you gain 3 life. Madness {B} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Whenever a creature enters the battlefield under an opponent's control, you may have that player lose 1 life.

Enchant Forest or Plains Whenever enchanted land becomes tapped, its controller loses 2 life.

Creature tokens get -1/-1.

Target player draws two cards and loses 2 life.

Enchant creature Enchanted creature gets -2/-2. At the beginning of the upkeep of enchanted creature's controller, that player loses 2 life.