Soul Net

Whenever a creature dies, you may pay . If you do, you gain 1 life.

Drain Life

Spend only black mana on X.
Drain Life deals X damage to any target. You gain life equal to the damage dealt, but not more life than the player’s life total before the damage was dealt, the planeswalker’s loyalty before the damage was dealt, or the creature’s toughness.

Flare

Flare deals 1 damage to any target.
Draw a card at the beginning of the next turn’s upkeep.

Viashino Sandstalker

Haste (This creature can attack and as soon as it comes under your control.)
At the beginning of the end step, return Viashino Sandstalker to its owner’s hand. (Return it only if it’s on the battlefield.)

Viashino Sandstalker

Haste (This creature can attack and as soon as it comes under your control.)
At the beginning of the end step, return Viashino Sandstalker to its owner’s hand. (Return it only if it’s on the battlefield.)

Sabertooth Cobra

Whenever Sabertooth Cobra deals damage to a player, that player gets a poison counter. The player gets another poison counter at the beginning of their next upkeep unless they pay before that step. (A player with ten or more poison counters loses the game.)

Hivis of the Scale

You may choose not to untap Hivis of the Scale during your untap step.
: Gain control of target Dragon for as long as you control Hivis and Hivis remains tapped.

Alarum

Untap target nonattacking creature. It gets +1/+3 until end of turn.

Civic Guildmage

, : Target creature gets +0/+1 until end of turn.
, : Put target creature you control on top of its owner’s library.

Ray of Command

Untap target creature an opponent controls and gain control of it until end of turn. That creature gains haste until end of turn. When you lose control of the creature, tap it.

Zirilan of the Claw

, : Search your library for a Dragon permanent card and put that card onto the battlefield. Then shuffle your library. That Dragon gains haste until end of turn. Exile it at the beginning of the next end step.

Lure of Prey

Cast this spell only if an opponent cast a creature spell this turn.
You may put a green creature card from your hand onto the battlefield.