Datalog / Primers : Battle ( Final Fantasy XIII - 2 ) The following is a list of Datalog entries for the Primers : Battle of " Final Fantasy XIII - 2 " . Some of the data is updated during the course of the game . ATB ( Active Time Battle ) . " Added after Noel introduces himself and Mog to Serah in Episode One " Paradigm Shift . " Added after Noel introduces himself and Mog to Serah in Episode One " A flexible strategy is the key to winning fights . When you wish to change your strategy , press / any time during battle to perform a " paradigm shift " . Your characters will acquire various roles as they progress through the game , such as the healing - oriented " Medic " and support - centered " Synergist " . Combinations of these roles are known as " Paradigms " . With clever use of paradigm shifts , you can switch from defensive paradigms containing " Medics " to attack paradigms featuring " Commandos " and " Ravagers " . Never hesitate to change strategies on the fly — reacting fast to fluid battle conditions is the surest past to victory ! When characters ' roles are changed with a paradigm shift , they not only gain new abilities and behavior , but also grant special bonuses to themselves and their party . Advance to the next page to see a list of the different roles and what effects they bring to your party . Cinematic Action . " Added after Noel introduces himself and Mog to Serah in Episode One " Chains and Staggering . " Added after Noel introduces himself and Mog to Serah in Episode One " Paradigm Pack . " Added after unlocking Serah ' s summoning power in Episode Two " You can selects up to three of the monster crystals you obtain in battle to add into your paradigms . These three monsters make up a " Paradigm Pack " . To prepare your monster allies , open the main menu by pressing / and select " Party Paradigms " . From the Party Paradigms menu , select " Paradigm Pack " , and then choose the monsters you wish to add to your battle roster . You can now create paradigms that include the creatures in that Paradigm Pack . Execute paradigm shift during battle to change the summoned monster you wish to fight with . Learn to use your Paradigm Pack and defeat even the most powerful opponents ! " Monster HP and KO " During battle , if your current monster ally is wounded and you call upon another using paradigm shift , the replacement monster ally will also be wounded . The same rule applies for status ailments and KO ' d monsters . When you find yourself in a bind , make sure to heal your way back to health . Obtaining Monster Crystals . " Added after unlocking Serah ' s summoning power in Episode Two " It is possible to increase your chances of obtaining a monster crystal from battles . Enemies defeated using a monster ' s Feral Link ability are more likely to become crystals . The more successful you are in inputting the Feral Link ability commands , the higher this chance becomes . Don ' t be shy about using monsters ' special attacks to obtain monster allies ! Monster Growth . " Added after unlocking Serah ' s summoning power in Episode Two " Like characters , monsters can be developed through the main menu . Press / to open the menu and select " Crystarium " . Use monster " materials " obtained from battles and other means to develop your monsters . Growth bonuses are directly related to the material used , so you can focus on raising a particular attribute . Each monster has its own role and individual growth characteristics . The characteristics can be found under the status display on the right side of the Crystarium screen . " Monster Growth Traits " The most important traits for monster growth are as follows : Keep your monsters ' characteristics in mind when choosing which growth items to use . " Monster Growth Items " Items such as " potent droplets " , " power droplets " , " mana droplets " , and " vitality droplets " are used to develop your monster allies . There are different grades of items such as " droplets " , " slivers " , and " orbs " . All monsters require grade - appropriate items for development . There are five grades , and the grade of each item , and the grade of each item will be shown in the description with this icon : . The required item grade increases along with the monster crystarium level . Bots require different items than beasts . Use materials such as " potent bolts " , " power bolts " , " mana bolts " , and " vitality bolts " for development . " Chips " and " engines " are higher grade items . Whenever you unlock a crystal , you gain a particular growth bonus , such as a " Strength Bonus " or " Magic Bonus " , depending on the material used . Decide which of a monster ' s attributes you wish to develop to make the most efficient use of the different monster materials . Special Attacks : Monsters . " Added after unlocking Serah ' s summoning power in Episode Two " Monster Customization . " Added after unlocking Serah ' s summoning power in Episode Two " Monster Customization : Infusing Abilities . " Added after unlocking Serah ' s summoning power in Episode Two " Libra and the Bestiary . " Added after unlocking Serah ' s summoning power in Episode Two " Role : Commando . " Added after Noel introduces himself and Mog to Serah in Episode One " Role : Ravager . " Added after Noel introduces himself and Mog to Serah in Episode One " Role : Sentinel . " Added after Noel introduces himself and Mog to Serah in Episode One " Using Items . " Added after Noel introduces himself and Mog to Serah in Episode One " Battle Results . " Added after Noel introduces himself and Mog to Serah in Episode One "