Hello thank you for getting this far into my guide. So with this type of build on Trundle
you are meant to be the front line and focus carry with damage. That is why you build Bloodrazor and BBC for damage and attack speed to burst down those carry's faster. You can go a damage build on trundle to with warrior but I prefer this style for shredding APC or ADC mains.

So with trundle you will always start on Gromp no matter what side. So after you take Gromp go Blue then Wolves or Scuttle depending on your health. Then you can go take Raptors heal up and gank or go a full clear and back. Either way when you gank the first thing you do is pillar then enemy laner toward yours then you W and Q and finish off with AA and the laner's spells. When you get six ganking is a lot easier same combo E-W-Q but instead of AA you R and then spam Q and AA.

Early game you should go through 1 full clear then gank with you smiting raptors. I normally go 1 1/2 clear then gank so I am lvl 6. Mid game you are a monster you have around 1 1/2 items up on the enemy laners and you shred APC and ADC health bars unless they are ahead and have some tank items. Late game you are a amazing front line doing a lot of damage if you go a semi offensive build. Your goal late game is to pillar the APC and or ADC toward your team so they get focused and you pop your ult on the next squishy target and focus them. In team fights always pillar squishy's no matter what when you've done that if there are any squishy's left focus them with R and Q spam. Always drop you w in team fight it gives you attack speed to shred APC's and ADC's.

Thank you for going through my guide this is my trundle build so it might not fit the way you play. have fun in soloque and try my build out