This is just a guide of how and why I build Tryndamere as a jungler. This is my first 'guide' so feedback will be appreciated.

The attack speed runes gives you +38% attack speed at the start of the game, so my only attack speed items are my boots and my phantom dancer. I prefer these runes over armor penetration because it provides you with more fury which will help you jungle faster due to constant healing from your

If you prefer armor penetration, you can swap your marks and quintessences for armor penetration runes. This will help you late game when people start to stack armor.