Knockdown Strike

 is an active skill that can be learned by slayers at level 4.

Rank table
To upgrade to the next rank, one must find a Tactics Instructor or open the skill menu, and pay a certain price of gold dependent on rank.

Glyphs
Upon getting level 20, glyph points can be allocated on. At level 65, a character has 55 glyph points available to spend on all available slayer glyphs. Most glyphs, specifically common glyphs, are learned automatically, while Master Glyphs must be obtained from dungeon drops or glyph boxes.