Merciless Leap (Berserker)

 is a passive skill that can be learned by Berserkers at level 24. It cannot be ranked up.

Learning increases damage dealt when the Berserker casts. Rank I of is a prerequisite for learning.

Rank table
can be bought from Tactics Instructors. This skill cannot be upgraded.

Glyphs
To glyph, a glyph must be obtained and learned only once. At level 60, a character has 50 glyph points available to spend on all available berserker glyphs. Most glyphs, specifically common glyphs can be purchased from a Glyph Master, while fine glyphs must be looted from enemies.

(Disclaimer: As NPC shop prices vary depending on a variety of factors, the prices below are subject to variation. Only take them as benchmarks.)