Method to Acquire - If you go to the right house on the northeast of Chapter 9, he'll show up on Chapter 10. If you go to the left house on the northeast or neither house, he'll show up on Chapter 11.
Damage - He's got very good damage, especially against flying units.
Critical - Give him Dieck and Clarine support as well as a Killer Bow and his critical should be around 65.
Speed - He'll be hitting twice against any enemy except those who die in his first attack.
Dodge - His dodge is alright but it's not amazing at any point in the game.
Growth Rates
HP - 60%
Strength - 35%
Skill - 40%
Speed - 45%
Defense - 15%
Resistence - 25%
Luck - 50%
Average Level 20 Sniper Klein(Hard Mode stats in parenthesis)
HP - 38(43)
Strength - 20(23)
Skill - 21(23)
Speed - 20(22)
Defense - 11(12)
Resistence - 11(13)
Luck - 20(23)
Total - 141(159)
Supports
Clarine - 7/20/27 turns
Percival - 20/30/40 turns
Dieck - 20/60/80 turns
Elphin - 25/30/40 turns
Tate - 15/30/40 turns
Rating - 8.75/10. His initial stats are good if you're playing on Hard Mode and he comes on an arena Chapter if you go to the left house in the northeast or neither house on Chapter 9. Not only that, but his support options are excellent as well, but even without them he's the best Sniper in Hard Mode.