Hired Poisoner

Contract Killing

Destroy target creature. Create two Treasure tokens. (They're artifacts with "{T}, Sacrifice this artifact: Add one mana of any color.")

Pouncing Jaguar

Echo {G} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)

Forest

Pulling Teeth

Clash with an opponent. If you win, target player discards two cards. Otherwise, that player discards a card. (Each clashing player reveals the top card of their library, then puts that card on the top or bottom. A player wins if their card had a higher mana value.)

Stalking Tiger

Stalking Tiger can't be blocked by more than one creature.

Tiger Claws

Flash
Enchant creature
Enchanted creature gets +1/+1 and has trample.

Murder

Exotic Curse

Enchant creature
Domain — Enchanted creature gets -1/-1 for each basic land type among lands you control.

Initiate's Companion

Whenever Initiate's Companion deals combat damage to a player, untap target creature or land.

Peat Bog

Peat Bog enters the battlefield tapped with two depletion counters on it.
{T}, Remove a depletion counter from Peat Bog: Add {B}{B}. If there are no depletion counters on Peat Bog, sacrifice it.

Hired Torturer

Defender
{3}{B}, {T}: Target opponent loses 2 life, then reveals a card at random from their hand.

Fertile Ground

Enchant land
Whenever enchanted land is tapped for mana, its controller adds an additional one mana of any color.

Swamp

Black Cat

When Black Cat dies, target opponent discards a card at random.

Riparian Tiger

Trample
When Riparian Tiger enters the battlefield, you get {E}{E} (two energy counters).
Whenever Riparian Tiger attacks, you may pay {E}{E}. If you do, it gets +2/+2 until end of turn.

Springing Tiger

Threshold — Springing Tiger gets +2/+2 as long as seven or more cards are in your graveyard.

Cave Tiger

Whenever Cave Tiger becomes blocked by a creature, Cave Tiger gets +1/+1 until end of turn.

Hired Blade

Flash (You may cast this spell any time you could cast an instant.)

Wild Growth

Enchant land
Whenever enchanted land is tapped for mana, its controller adds an additional {G}.

Hickory Woodlot

Hickory Woodlot enters the battlefield tapped with two depletion counters on it.
{T}, Remove a depletion counter from Hickory Woodlot: Add {G}{G}. If there are no depletion counters on Hickory Woodlot, sacrifice it.