Trundle Crash Course

Crash course for generally good runes/items to always go for people that just need a quick overview.

Rune Setup

Precision
Lethal TempoLethal Tempo
TriumphTriumph
Legend: AlacrityLegend: Alacrity
Last StandLast Stand
Resolve
DemolishDemolish
RevitalizeRevitalize
Attack SpeedAttack Speed
Adaptive ForceAdaptive Force
Scaling HPScaling HP

This runepage is the foundation for Trundle, focusing on attack speed and extended trades with Lethal Tempo whilst providing for tower damage Demolish and extra sustain Revitalize.

Item Build

Ravenous HydraRavenous Hydra
Blade of the Ruined KingBlade of the Ruined King
HullbreakerHullbreaker

These 3 items are almost always good in this order:
Ravenous Hydra, Blade of the Ruined King, and Hullbreaker.

TerminusTerminus
Wit's EndWit's End
Trinity ForceTrinity Force

Skill Order

Skill123456789101112131415161718
Q
1
4
5
7
9
W
2
8
10
12
13
E
3
14
15
17
18
R
6
11
16

The standard skill order is as above. It is ALWAYS good. In most scenarios, it is better to go Q > W > Q > E > W.
Adapt skill order based on matchups and situations.