I think Dogpool's best use is to block twice (possibly 3 times) and clear out. The ability to ATK 1 repeatedly with no consequential damage is not powerful enough imo to outweigh the acceleration icon, but you may get some use out of it in the "bad icon" 'Pool strategy. Dogpool is at least not as disastrous as the hazard icon allies are, but if you are building for power level there are plenty of basic allies I would play over this card.