Looks like a pack-filler at first but when you consider this can be combo'd with rush minions (or mechs after playing dr boom) it looks a bit better. Best case scenario you use it with Akali, the Rhino and he overkills 3 minions, drawing you 3 cards that get buffed +5/+5. Can also be used with the new Vicious Scraphound for some extra armor.
1/1 next to a big creature. . . attack the 1/1 with this and your strong creature lives This is going to see tons of play Scraphound > Zilliax > Sweeping Strikes gains you 10-20 health + 10-20 armor and board clearing