Have

Severed Strands

As an additional cost to cast this spell, sacrifice a creature.
You gain life equal to the sacrificed creature's toughness. Destroy target creature an opponent controls.

Wild Ceratok

Swarm Guildmage

{4}{B}, {T}: Creatures you control get +1/+0 and gain menace until end of turn. (They can't be blocked except by two or more creatures.)
{1}{G}, {T}: You gain 2 life.

Bartizan Bats

Flying (This creature can't be blocked except by creatures with flying or reach.)

Vraska's Stoneglare

Destroy target creature. You gain life equal to its toughness. You may search your library and/or graveyard for a card named Vraska, Regal Gorgon, reveal it, and put it into your hand. If you search your library this way, shuffle.

Ironshell Beetle

When this creature enters, put a +1/+1 counter on target creature.

Devkarin Dissident

{4}{G}: This creature gets +2/+2 until end of turn.

Kraul Foragers

Undergrowth — When this creature enters, you gain 1 life for each creature card in your graveyard.

Prey Upon

Target creature you control fights target creature you don't control. (Each deals damage equal to its power to the other.)

Glowspore Shaman

When this creature enters, mill three cards. You may put a land card from your graveyard on top of your library. (To mill a card, put the top card of your library into your graveyard.)

Beast Whisperer

Whenever you cast a creature spell, draw a card.

Vraska, Regal Gorgon

+2: Put a +1/+1 counter on up to one target creature. That creature gains menace until end of turn.
−3: Destroy target creature.
−10: For each creature card in your graveyard, put a +1/+1 counter on each creature you control.

Swamp

Dead Weight

Enchant creature
Enchanted creature gets -2/-2.

Rhizome Lurcher

Undergrowth — This creature enters with a number of +1/+1 counters on it equal to the number of creature cards in your graveyard.

Douser of Lights

Attendant of Vraska

When this creature dies, if you control a Vraska planeswalker, you gain life equal to this creature's power.

Bounty of Might

Target creature gets +3/+3 until end of turn.
Target creature gets +3/+3 until end of turn.
Target creature gets +3/+3 until end of turn.

Jungle Creeper

{3}{B}{G}: Return this card from your graveyard to your hand.

Forest

Golgari Guildgate

This land enters tapped.
{T}: Add {B} or {G}.

Spinal Centipede

When this creature dies, put a +1/+1 counter on target creature you control.

Kraul Raider

Menace (This creature can't be blocked except by two or more creatures.)

Lotleth Giant

Undergrowth — When this creature enters, it deals 1 damage to target opponent for each creature card in your graveyard.