Unlikely Aid

Target creature gets +2/+0 and gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

Skymarch Bloodletter

Flying
When this creature enters, target opponent loses 1 life and you gain 1 life.

Plains

Ajani's Pridemate

Whenever you gain life, put a +1/+1 counter on this creature.

Saheeli's Silverwing

Flying
When this creature enters, look at the top card of target opponent's library.

Duskmantle Operative

This creature can't be blocked by creatures with power 4 or greater.

Swamp

Rally of Wings

Untap all creatures you control. Creatures you control with flying get +2/+2 until end of turn.

Charmed Stray

Lifelink
When this creature enters, put a +1/+1 counter on each other creature you control named Charmed Stray.

Cruel Celebrant

Whenever this creature or another creature or planeswalker you control dies, each opponent loses 1 life and you gain 1 life.

Rising Populace

Whenever another creature or planeswalker you control dies, put a +1/+1 counter on this creature.

Murder

Teyo's Lightshield

When this creature enters, put a +1/+1 counter on target creature you control.

Divine Arrow

Divine Arrow deals 4 damage to target attacking or blocking creature.

Sorin's Thirst

Sorin's Thirst deals 2 damage to target creature and you gain 2 life.

Orzhov Guildgate

This land enters tapped.
{T}: Add {W} or {B}.

Desperate Lunge

Target creature gets +2/+2 and gains flying until end of turn. You gain 2 life.

Gideon, the Oathsworn

Whenever you attack with two or more non-Gideon creatures, put a +1/+1 counter on each of those creatures.
+2: Until end of turn, Gideon becomes a 5/5 white Soldier creature that's still a planeswalker. Prevent all damage that would be dealt to him this turn. (He can't attack if he was cast this turn.)
−9: Exile Gideon and each creature your opponents control.

Gideon's Company

Whenever you gain life, put two +1/+1 counters on this creature.
{3}{W}: Put a loyalty counter on target Gideon planeswalker.