Mountain

Kulrath Zealot

When this creature enters, exile the top card of your library. Until the end of your next turn, you may play that card.
Basic landcycling {1}{R} ({1}{R}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)

Graveshifter

Changeling (This card is every creature type.)
When this creature enters, you may return target creature card from your graveyard to your hand.

Swamp

Virulent Emissary

Deathtouch
Whenever another creature you control enters, you gain 1 life.

Forest

Thoughtweft Charge

Target creature gets +3/+3 until end of turn. If a creature entered the battlefield under your control this turn, draw a card.

Blossoming Defense

Target creature you control gets +2/+2 and gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)

Blighted Blackthorn

Whenever this creature enters or attacks, you may blight 2. If you do, you draw a card and lose 1 life. (To blight 2, put two -1/-1 counters on a creature you control.)

Sourbread Auntie

When this creature enters, you may blight 2. If you do, create two 1/1 black and red Goblin creature tokens. (To blight 2, put two -1/-1 counters on a creature you control.)

Goatnap

Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn. If that creature is a Goat, it also gets +3/+0 until end of turn.

Dose of Dawnglow

Return target creature card from your graveyard to the battlefield. Then if it isn't your main phase, blight 2. (Put two -1/-1 counters on a creature you control.)

Mutable Explorer

Changeling (This card is every creature type.)
When this creature enters, create a tapped Mutavault token. (It's a land with "{T}: Add {C}" and "{1}: This token becomes a 2/2 creature with all creature types until end of turn. It's still a land.")

Lys Alana Informant

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

Heirloom Auntie

This creature enters with two -1/-1 counters on it.
Whenever another creature you control dies, surveil 1, then remove a -1/-1 counter from this creature. (To surveil 1, look at the top card of your library. You may put it into your graveyard.)

Blight Rot

Put four -1/-1 counters on target creature.

Unforgiving Aim

Choose one —
• Destroy target creature with flying.
• Destroy target enchantment.
• Create a 2/2 black and green Elf creature token.

Moonglove Extractor

Whenever this creature attacks, you draw a card and lose 1 life.

Unbury

Choose one —
• Return target creature card from your graveyard to your hand.
• Return two target creature cards that share a creature type from your graveyard to your hand.

Assert Perfection

Target creature you control gets +1/+0 until end of turn. It deals damage equal to its power to up to one target creature an opponent controls.

Lasting Tarfire

At the beginning of each end step, if you put a counter on a creature this turn, this enchantment deals 2 damage to each opponent.

Champion of the Weird

As an additional cost to cast this spell, behold a Goblin and exile it. (Exile a Goblin you control or a Goblin card from your hand.)
Pay 1 life, Blight 2: Target opponent blights 2. Activate only as a sorcery.
When this creature leaves the battlefield, return the exiled card to its owner's hand.

Nameless Inversion

Changeling (This card is every creature type.)
Target creature gets +3/-3 and loses all creature types until end of turn.

Explosive Prodigy

Vivid — When this creature enters, it deals X damage to target creature an opponent controls, where X is the number of colors among permanents you control.

Great Forest Druid

Gutsplitter Gang

At the beginning of your first main phase, you may blight 2. If you don't, you lose 3 life. (To blight 2, put two -1/-1 counters on a creature you control.)