Swamp

Fear of Lost Teeth

When Fear of Lost Teeth dies, it deals 1 damage to any target and you gain 1 life.

Give In to Violence

Target creature gets +2/+2 and gains lifelink until end of turn.

Resurrected Cultist

Delirium — {2}{B}{B}: Return Resurrected Cultist from your graveyard to the battlefield with a finality counter on it. Activate only if there are four or more card types among cards in your graveyard and only as a sorcery. (If a creature with a finality counter on it would die, exile it instead.)

Grasping Longneck

Reach
When Grasping Longneck dies, you gain 2 life.

Forest

Bear Trap

Flash
{3}, {T}, Sacrifice Bear Trap: It deals 3 damage to target creature.

Slavering Branchsnapper

Trample
Forestcycling {2} ({2}, Discard this card: Search your library for a Forest card, reveal it, put it into your hand, then shuffle.)

Wary Watchdog

When Wary Watchdog enters or dies, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

Appendage Amalgam

Flash
Whenever Appendage Amalgam attacks, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

Winter's Intervention

Winter's Intervention deals 2 damage to target creature. You gain 2 life.

Friendly Teddy

When Friendly Teddy dies, each player draws a card.

Manifest Dread

Manifest dread. (Look at the top two cards of your library. Put one onto the battlefield face down as a 2/2 creature and the other into your graveyard. Turn it face up any time for its mana cost if it's a creature card.)

Spineseeker Centipede

When Spineseeker Centipede enters, search your library for a basic land card, reveal it, put it into your hand, then shuffle.
Delirium — Spineseeker Centipede gets +1/+2 and has vigilance as long as there are four or more card types among cards in your graveyard.