Enderal:Memory trees
From sureai
Rogue tree
Shadow of the wind - This memory unlocks all rogue disciplines for you. Your Stamina regeneration is boosted by 20 percent and you receive the talent "Shadow of the Wind" which lets you move more silently for a short period of time and raises your critical hit chance.
Level 1: 7 percent higher critical hit chance, 25 seconds duration
Level 2: 7 percent higher critical hit chance, 45 seconds duration
Level 3: 7 percent higher critical hit chance, 60 seconds duration