I'm seeing a bit too many builds based on this guy, saying its the new DSF, making OTKs left and right.
Its too small by itself to cause much damage, and too dependant on conditions of the field.
On top of that its nowhere near as worth it to bring out compared to the other level 7s we still have(Arcanite, Armor Master, BRD, etc).
To make it work, your going to have to buff it with Equip spells.
At least that gives you utility of Powertool Dragon, another level 7.
But doesnt solve the problem of summoning both.