Mountain

Ondu Champion

Rally — Whenever Ondu Champion or another Ally enters the battlefield under your control, creatures you control gain trample until end of turn.

Scarab Feast

Exile up to three target cards from a single graveyard.
Cycling {B} ({B}, Discard this card: Draw a card.)

Lightning Visionary

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

Nyxborn Marauder

Suffocating Fumes

Creatures your opponents control get -1/-1 until end of turn.
Cycling {2} ({2}, Discard this card: Draw a card.)

Molten Frame

Destroy target artifact creature.
Cycling {2} ({2}, Discard this card: Draw a card.)

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Deathbellow Raider

Deathbellow Raider attacks each combat if able.
{2}{B}: Regenerate Deathbellow Raider.

Bloodfell Caves

Bloodfell Caves enters the battlefield tapped.
When Bloodfell Caves enters the battlefield, you gain 1 life.
{T}: Add {B} or {R}.

Hostile Minotaur

Haste (This creature can attack and {T} as soon as it comes under your control.)

Divest

Target player reveals their hand. You choose an artifact or creature card from it. That player discards that card.

Kragma Butcher

Inspired — Whenever Kragma Butcher becomes untapped, it gets +2/+0 until end of turn.

Swamp

Oubliette

When Oubliette enters the battlefield, target creature phases out until Oubliette leaves the battlefield. Tap that creature as it phases in this way. (Auras and Equipment phase out with it. While permanents are phased out, they're treated as though they don't exist.)

Gorehorn Minotaurs

Bloodthirst 2 (If an opponent was dealt damage this turn, this creature enters the battlefield with two +1/+1 counters on it.)

Minotaur Skullcleaver

Haste
When Minotaur Skullcleaver enters the battlefield, it gets +2/+0 until end of turn.