Maggotkin of Nurgle · battle formation
Tallyband of Nurgle: the default disease-amplifier formation (AoS 4th Ed)
Boosts your core disease damage, making it the reliable all-rounder choice for most Maggotkin lists.
Age of Sigmar 4th edition
Sprue Sentry strategy commentary for Age of Sigmar 4th edition, not official rules. Games Workshop updates points and rules regularly; always confirm against the current official rules and latest update before a game.
Tallyband of Nurgle is the straightforward, do-what-the-army-does-better formation. It amplifies the mortal damage from your disease mechanic (commonly cited as +1 to Wracked with Disease), so every infected enemy unit hurts a little more each turn. Exact wording is seasonal, so confirm it on your current faction pack.