Plains

Tanglesap

Prevent all combat damage that would be dealt this turn by creatures without trample.

Tajuru Snarecaster

Canopy Baloth

Landfall — Whenever a land you control enters, Canopy Baloth gets +2/+2 until end of turn.

Ambush Viper

Righteous Cause

Whenever a creature attacks, you gain 1 life.

Revitalize

Circle of Protection: Red

{1}: The next time a red source of your choice would deal damage to you this turn, prevent that damage.

Dauntless Onslaught

Up to two target creatures each get +2/+2 until end of turn.

Aven Flock

Flying (This creature can't be blocked except by creatures with flying or reach.)
{W}: Aven Flock gets +0/+1 until end of turn.

Trollhide

Enchant creature
Enchanted creature gets +2/+2 and has "{1}{G}: Regenerate this creature." (The next time the creature would be destroyed this turn, it isn't. Instead tap it, remove all damage from it, and remove it from combat.)

Howl of the Hunt

Flash
Enchant creature
When Howl of the Hunt enters, if enchanted creature is a Wolf or Werewolf, untap that creature.
Enchanted creature gets +2/+2 and has vigilance.

Battle Mastery

Enchant creature
Enchanted creature has double strike. (It deals both first-strike and regular combat damage.)

Peach Garden Oath

You gain 2 life for each creature you control.

Groundshaker Sliver

Sliver creatures you control have trample. (A creature with trample can deal excess combat damage to the player or planeswalker it's attacking.)

Feral Krushok

War Oracle

Lifelink (Damage dealt by this creature also causes you to gain that much life.)
Renown 1 (When this creature deals combat damage to a player, if it isn't renowned, put a +1/+1 counter on it and it becomes renowned.)

Charging Binox

Assist (Another player can pay up to {7} of this spell's cost.)
Trample

Aven Cloudchaser

Flying (This creature can't be blocked except by creatures with flying or reach.)
When Aven Cloudchaser enters, destroy target enchantment.

Kinsbaile Skirmisher

When Kinsbaile Skirmisher enters, target creature gets +1/+1 until end of turn.

Kill Shot

Serra Angel

Primordial Wurm

Honor's Reward

You gain 4 life. Bolster 2. (Choose a creature with the least toughness among creatures you control and put two +1/+1 counters on it.)

Akroan Phalanx

Vigilance
{2}{R}: Creatures you control get +1/+0 until end of turn.

Resounding Silence

Exile target attacking creature.
Cycling {5}{G}{W}{U} ({5}{G}{W}{U}, Discard this card: Draw a card.)
When you cycle Resounding Silence, exile up to two target attacking creatures.