Shadow priest revolves around managing DOTs on the target and has a rotation that close resembles that of an Affliction Warlock.

Talents for Shadow Priest Wotlk

Shadow Priest Talents for Wotlk

Glyphs

Major

Glyph of Shadow

Glyph of Mind Flay

Glyph of Dispersion

Minor

Glyph of Shadow Protection

Glyph of Shadowfiend

Glyph of Shackle Undead