War Room

{T}: Add {C}.
{3}, {T}, Pay life equal to the number of colors in your commanders' color identity: Draw a card.

Jareth, Leonine Titan

Whenever Jareth, Leonine Titan blocks, it gets +7/+7 until end of turn.
{W}: Jareth gains protection from the color of your choice until end of turn.

Roil's Retribution

Roil's Retribution deals 5 damage divided as you choose among any number of target attacking or blocking creatures.

Duskworker

Whenever Duskworker becomes blocked, regenerate it.
{3}: Duskworker gets +1/+0 until end of turn.

Oblation

The owner of target nonland permanent shuffles it into their library, then draws two cards.

Steadfast Armasaur

Vigilance
{1}{W}, {T}: Steadfast Armasaur deals damage equal to its toughness to target creature blocking or blocked by it.

Plains

Grasping Giant

Vigilance
Whenever Grasping Giant becomes blocked by a creature, exile that creature until Grasping Giant leaves the battlefield.

Battering Ram

At the beginning of combat on your turn, Battering Ram gains banding until end of combat. (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 being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's blocking.)
Whenever Battering Ram becomes blocked by a Wall, destroy that Wall at end of combat.