
Ainok Bond-Kin | Creature | Dog Soldier | Outlast {1}{W} ({1}{W}, {T}: Put a +1/+1 counter on this creature. Outlast only as a sorcery.)
Each creature you control with a +1/+1 counter on it has first strike. | Chris Rahn

Feat of Resistance | Instant | | Put a +1/+1 counter on target creature you control. It gains protection from the color of your choice until end of turn. (It can't be blocked, targeted, dealt damage, enchanted, or equipped by anything of that color.) | David Gaillet

Jeskai Student | Creature | Human Monk | Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) | David Gaillet

Leaping Master | Creature | Human Monk | {2}{W}: Leaping Master gains flying until end of turn. | Anastasia Ovchinnikova