Team Rocket had many pokemon experimented on and these three were no exception as they in lockdown ever since they were babies. The blastoise, project Vacuum had his hydro cannons messed with so they would suck in pokemon and his inner shell was made very elastic to hold any kind of pokemon. However by doing this made the giant turtle very hungry when he did and he was able to adapt and transfer some of the pokemon he'd catch and pull them into his gut. Needless to say by doing this marked him as a reject and the operation had to be pulled thanks to the blastiose's gluttony.

The torterra was part of project Seed Sealer where his leech seed would not only trap the targeted pokemon with vines but within the seed itself. It was easy to get him to fire the seed. Making it engulf the target was a tougher challenge than expected. However once he got it down his whole body had changed thanks to the food that was given to him. The torterra was removed from the project due to his naughty nature and disobedient behavior with the seeds and trapping non targets and even betraying his trainers.

The blazikent was part of project Elastic Trap. He was often fed ditto and mix parts of their DNA to make himself a way to capture pokemon with the pokemon themselves. The blaziken in his youth didn't like the taste of the ditto but over time he got used to it and then was getting bored with it. It was a nice change of pace one he gobbled up a tyranitar, an aggorn and an abomasnow all in once setting. After that he was labeled a reject for refusing to let go of the three pokemon he captured and promptly digested them with little effort.

All three of them were going to be exterminated due to them being rejects and were bound tightly so that they couldn't escape however someone didn't tightly secure the blastoise's cannons and with a Hydro Cannon, Hydro Pump combo water overflowed the whole area and the turtle takes his friends with the water current which flowed through a lake and a hybrid of a rhino and a dragon happened to find them.