Some people do not know how to modify their sheep. Today I want to privide you some advice. Here is a helpful list:
That Glyph of Polymorph removes all damage over time effects from your sheep target when you cast Polymorph on it. Without of question, it is so helpful when your warlock is an idiot, which of course means always. You need to require Cheap WOW Gold, making it tough to justify outside of a PvP build, but still an option to take note of. Nothing sucks quite like seeing some moron put a bleed on your sheep target and knowing that they have effectively killed your ability to sheep that target until the duration of the DoT expires.
Improved Polymorph, this fourth-tier arcane talent alters your sheep so that when it is broken by damage, the mob is also stunned for 3 seconds. This gives you a 3-second buffer each time, and your sheep is broken to reapply the CC or just kill the mob. A powerful PvP ability, that buffer is also nice in PvE, though you might have trouble justifying the two talent points in a raiding build.
Glyph of the Monkey and Penguin Cosmetic glyphs only, these trade your traditional sheep for a penguin or monkey. There is something you should keep in mind. While you have this glyph applied, you can no longer actually sheep something. But you can monkey or penguin them. Frankly, those are also pretty good made-up world of warcraft gold.