Thani (セイニー Seinī) is a Light Magic tome from Fire Emblem: Radiant Dawn. The light magic equivalent of the Rapier blade, the Thani tome possesses added bonuses against cavalry and armored units. Furthermore, this tome may only be wielded by Micaiah. Unlike other weapons that are effective against cavalry and armored units and are starting weapons made specially for particular characters, the Thani tome may be left behind in Chapter 1-2. This will essentially increase the difficulty of the game, as armored units in Part 1 are especially difficult to defeat.