Editing Necron (section)

=== Pre 5th edition Codex ===
Pre-5th edition, the Necrons competitively were monobuilt to all hell. Depending on what they were up against they would be THE virtually unstoppable shooty army, or easily countered. Essentially this came down to whether or not you had enough hard counters to heavy infantry. If you didn't, you'd get the infamous "March of Doom", which was basically a non-stop forward march of Necron Warriors, Immortals, and Destroyers to flatten the table. The Necrons' innate WBB (We'll Be Back) rolls ensured that the March was fuckhard to stop, especially in tandem with Resurrection Orbs, Pylons, Monoliths, and some of the cheesier Necron formations, since the tin-men had a very good chance of getting back up after being downed.

If you did have a counter to Heavy Infantry, you'd quickly crush the Necron infantry while ignoring the extremely resilient units like Monoliths and cause the Necron survivors to Phase Out, which means the Necron Player will auto-lose should their forces go down to 25% of the starting numbers.

Necron were also severely nerfed in the start of ''5th Edition'', due to vehicles being a bit more sturdy. In the previous edition, they could potentially destroy any enemy (including heavy vehicles) with just their default troops choice - Gauss weaponry inflicts glancing hits against vehicles on a roll of 6. Necron Warriors dispatching [[Land Raider]]s or [[Leman Russ Battle Tank|Leman Russ Tanks]] with these glancing hits was ''not'' unheard of, causing many veterans of 40K tabletop to rightly declare the Necrons to be [[Cheese]].