User blog comment:Kogath/Monster Hunter 4 Ultimate for the Nintendo 3DS/@comment-28303251-20160123022029/@comment-5569775-20160123035432

The only way to get different versions is to have a stringer with the that version, which is dependent on what skills it knows. Element skills either deal elemental damage(Rath of Meow), reduce the elemental defense of the monster(F Bomb) or increase your elemental defense(Purrtuoso).

Team attack redux, allows the attack to repeat under certain conditions. For Rath, if the tank is destroyed while it had shots left, it will come back(once per initial activation of the skill). If F Bomb misses, they'll attempt it one more time. And if you aren't at max(150) Health or Stamina after Purrtuoso, they'll preform it again.

Team attack Haste speeds up the attacks. Rath will fire 2 shots at a time, F Bomb will flies faster and Purrtuoso will charge up(they'll dance less before actually healing you) faster.

Team attack strong boosts the effect of each to a degree: Rath will deal increase damage, F Bomb will lower all the resists of the monster by a small amount and Purrtuoso will increase defense by 25.

Team attack boost will cause Rath to deal more damage than with "Strong" and it fires in a spread. F Bomb will trip the monster(a fun one, IMO). And Purrtuoso will have a Regen effect(had a low level one at one point that healed for an Herbs worth every 10 seconds and lasted about a minute, but I accidently let it go...)

Lastly, signal lets you signal when you want them to use the attack, if the attack is available(it has a cooldown).