Akroan Line Breaker
Journey into Nyx — Uncommon
Creature — Human Warrior
Heroic — Whenever you cast a spell that targets Akroan Line Breaker, Akroan Line Breaker gets +2/+0 and gains intimidate until end of turn. (It can't be blocked except by artifact creatures and/or creatures that share a color with it.)
The enemies' shields are the first to shatter, and their battle line is never far behind.