Climb the GiantLevel 4 Uncommon

Drizzt can climb right up one side of huge foes and tumble down the other to land like a cat.

Grandmaster Training        840 gp

Power Encounter (Move Action)

Requirement: You must be adjacent to a creature whose size category is larger than yours.

Effect: You shift up to 5 squares to a square adjacent to the larger creature. During the shift, you can enter the creature's space.

Published in Neverwinter Campaign Setting, page(s) 150.