This is a 'fundamentals' guide for team fights, not laning. This guide is for players who don't yet understand Singed.

Singed is a champion for those who value playing alone, on the front line. If you know your target, you eliminate the need for team play, however you need a team to win.

Singed's motto is "I'm the one who knocks". Singed is easy to play, if you enjoy dying a lot, and overcoming CC.

Singed's primary role is to disrupt delicate carries (AD + AP). If their team is composed of (TANK, ASSASSIN, BRUISER, SUPPORT, AD CARRY), you focus on the carry. An enemy support will try stop you, don't give up. In the absence of an enemy carry, the highest damage AND squishiest threat is controlled back into the team fight.

Your team will pick up the pieces, when you do your job correctly (inb4 I have a noob team). Unconditionally trusting your team is how you win.

Runes and Masteries are disappearing soon. Until then...

Mark: Magic Penetration - The strongest mark that Singed benefits from.

Seal: Scaling Armour - Take flat armour if you are countered in lane.

Glyph: Scaling Magic Resistance - Take flat MR if you are countered in lane.

Quintessence: Movement Speed - It's your bread and butter.

Runes and Masteries are disappearing soon. Until then...

There are two paths for Singed, both variations occur in the RESOLVE TREE

The options are

LEVEL 1 Recovery VS Unyielding
LEVEL 3 Runic Armour VS Veteran's scars
LEVEL 4 Perseverance VS Fearless

Recovery, Runic Armour and Perseverance provide SUSTAINABILITY.
Unyielding, Veteran's scars, and Fearless provide MITIGATION.

Sustainability > mitigation WHEN against poke teams OR you aren't teaming with healers
Mitigation > sustainability WHEN against all-in teams OR you are teaming with healers

Against an all-in team and you aren't teaming with healers? Take mitigation.
Against a poke team team and you are teaming with healers? Take sustainability.

Item priority

TOP TIER

Movement speed
Mitigation (HEALTH, ARMOUR, MAGIC RESISTANCE, SHIELDS)

GOOD TIER

Health Regeneration (Health regeneration is good BUT the only options are Zz'Rot (SR), Guardian's Horn (ARAM) and Doran's Shield (SR + TT))

AVOID TIER (Avoid these at all cost. The recommended items listed specifically don't provide these stats, except Rylai's which is CORE.)

Ability Power
Mana
Mana Regeneration
Cool-down reduction

The Sequence is Q > W > E AND R at 6, 11, and 16.

It's that simple. W and E simply cost too much mana when levelled up early.

Early Q and Rylai's will make you a DPS threat until level 11, where you transition from damage, to disruption.

Flash is mandatory. It's the escape, and play-maker.

Ghost for Summoner's Rift and Twisted Treeline, provides escape and play-making.

Snowball for ARAM. No escape, but a better play-maker than Ghost.

Run, b****, run!

You have to be tough to kill, tough to slow down, and annoy the carries.