Valkyrie Profile: Covenant of the Plume is the latest in the VP series, making its debut on the DS. Unlike the first two, which were action-RPGs, CotP is an SRPG. You command up to 4 characters on a grid based map that will be familiar to anyone who's played...well, any SRPG released in the last decade. One interesting thing is that whenever any unit attacks, if you have other units in range of the enemy they can attack as well. When attacking, instead of just swinging once, each character has multiple attacks that you can chain into combos; when you have an enemy surrounded with all 4 of your guys, this allows you to really unload.
Like the previous VP games, CotP continues the Norse mythology theme. In the previous VP games the Valkyries chose glorious warriors to go fight in the battle of Ragnarok. In CotP your father was chosen; his loss caused much suffering for the main character and his family. As a result, you swear to get revenge on the Valkyrie.