War of the Spark

Makeshift Battalion | Creature | Human Soldier | Whenever Makeshift Battalion and at least two other creatures attack, put a +1/+1 counter on Makeshift Battalion. | Zoltan Boros

Rising Populace | Creature | Human | Whenever another creature or planeswalker you control dies, put a +1/+1 counter on Rising Populace. | Tomasz Jedruszek

Teyo's Lightshield | Creature | Illusion | When Teyo's Lightshield enters the battlefield, put a +1/+1 counter on target creature you control. | Igor Kieryluk

Trusted Pegasus | Creature | Pegasus | Flying (This creature can't be blocked except by creatures with flying or reach.) Whenever Trusted Pegasus attacks, target attacking creature without flying gains flying until end of turn. | Chris Rahn

Feather, the Redeemed | Legendary Creature | Angel | Flying Whenever you cast an instant or sorcery spell that targets a creature you control, exile that card instead of putting it into your graveyard as it resolves. If you do, return it to your hand at the beginning of the next end step. | Wayne Reynolds