Pet Bombling

As others have said, this little guy is pretty nice for a PvE team against a boss with backline pets.

Minefield + Stun (and enemy switch) is a hard hitting combo.

It is faster than the average Mechanical pet, aside from S/S breeds.

I only wish it had a Boombot ability like Lil' XT, instead of Batter / Zap, it would have been fun to place a bomb too, making little copies of itself like a selfcontained Bombsquad.

The only pet with Minefield that can also force a tamer pet swap at the same time (Screeching Gears). 

Example use: Jeremy Feasel starts with a magic pet. Lay Minefield, spam Screeching Gears until the stun triggers. Swap to an elemental pet with Stun Seed and beat the tonk without using it. Apply Stun Seed on the magic pet, swap back to Pet Bombling, Minefield, Stun Seed triggers and he'll swap in his beast pet. Easy win.

This guy pairs great with a Call Lightning user to take out Zao in the Celestial Tournament. Go Batter/Toxic Smoke/Explode, and you can tear chunks out of the big ox, just before exploding in his face. This also works for Lil' Oondasta, though the other Legendary beasts are too fast for Batter to get its maximum effect (save Gorespine, but Spiked Skin shuts this strategy down just as hard).

I love this little guy, throw down a mine field when you are about to finish off an enemy and the next one coming in is going to be a beast pet, he will hit the minefield upon entering. Boooom you can sometimes kill them in one shot before they even get started.  Very effective pet if used correctly.