Trundle

Strengths

Trundle excels at fighting within his Frozen Domain. Try to draw enemies onto it.
Use Subjugate to soften a powerful enemy tank or to create a target for your team to focus fire.
Chomp is good for lowering the physical damage of enemies; try to focus it on enemy physical damage dealers.

Passive · King's Tribute — When an enemy unit dies near Trundle, he heals for a percent of its maximum Health.
Q · Chomp — Trundle bites his opponent, dealing damage, briefly slowing and sapping some of their Attack Damage.
W · Frozen Domain — Trundle turns target location into his domain, gaining Attack Speed, Move Speed, and increased healing from all sources while on it.
E · Pillar of Ice — Trundle creates an ice pillar at target location, becoming impassable terrain and slowing all nearby enemy units.
Ultimate · Subjugate — Trundle immediately steals a percent of his target's Health, Armor and Magic Resistance. Over the next 4 seconds the amount of Health, Armor, and Magic Resistance stolen is doubled.

A suggested 5-lane lineup built around Trundle, based on hero partnerships and role synergy — not win rate.