Mountain

Enslaved Scout

{2}: Enslaved Scout gains mountainwalk until end of turn. (It can't be blocked as long as defending player controls a Mountain.)

Flowstone Mauler

Trample
{R}: Flowstone Mauler gets +1/-1 until end of turn.

Opportunist

{T}: Opportunist deals 1 damage to target creature that was dealt damage this turn.

Flowstone Shambler

{R}: Flowstone Shambler gets +1/-1 until end of turn.

Ceremonial Guard

When Ceremonial Guard attacks or blocks, destroy it at end of combat.

Cinder Crawler

{R}: Cinder Crawler gets +1/+0 until end of turn. Activate only if Cinder Crawler is blocked.

Marble Priest

All Walls able to block Marble Priest do so.
Prevent all combat damage that would be dealt to Marble Priest by Walls.

Ogre Taskmaster

Telim'Tor's Darts

{2}, {T}: Telim'Tor's Darts deals 1 damage to target player or planeswalker.

Grizzled Wolverine

{R}: Grizzled Wolverine gets +2/+0 until end of turn. Activate only during the declare blockers step, only if at least one creature is blocking Grizzled Wolverine, and only once each turn.

Stone Spirit

Stone Spirit can't be blocked by creatures with flying.

Flowstone Salamander

{R}: Flowstone Salamander deals 1 damage to target creature blocking it.

Windseeker Centaur

Ogre Berserker

Raging Spirit

{2}: Raging Spirit becomes colorless until end of turn.

Nalathni Dragon

Flying; banding (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)
{R}: Nalathni Dragon gets +1/+0 until end of turn. If this ability has been activated four or more times this turn, sacrifice Nalathni Dragon at the beginning of the next end step.

Hyperion Blacksmith

{T}: You may tap or untap target artifact an opponent controls.

Raging Cougar

Maraxus of Keld

Maraxus of Keld's power and toughness are each equal to the number of untapped artifacts, creatures, and lands you control.

Furnace Brood

{R}: Target creature can't be regenerated this turn.

Flowstone Wyvern

Flying
{R}: Flowstone Wyvern gets +2/-2 until end of turn.

Orcish Veteran

Orcish Veteran can't block white creatures with power 2 or greater.
{R}: Orcish Veteran gains first strike until end of turn.