Board Thread:Questions and Answers/@comment-220.255.2.87-20130409145738/@comment-5706972-20130501141600

Every Raid event and every BR event releases cards that give an additional boost for that event only.

Raid:

Raids (lately) actually release 3 cards: 1 for regular bosses, 1 for Hidden bosses, and 1 for Secret bosses. When the card activates against their specific boss type it will give Large boost (unevolved)/Great boost (evolved) according to what the card says. All Raid UR cards provide a Medium boost against any boss that is not of their specific type.

Battle Royale:

The back line suppression and Great Boost to BR points will only activate during the BR the card is released for. Outside that BR, the card will produce a Large Boost to BR points. Of note: typically, the unevolved card has the same skill as the evolved card - which means that the unevolved card will do less damage on its own, but provide the same boost as the evolved version.