Focus your skill points on Sovereign Command first. This maximizes the area-of-effect (AoE) morale boost, keeping your troops from retreating even when outnumbered.

The "gm21link" refers to the specific integration patch that bridges the mobile and desktop versions of the game, ensuring that the Return of the Great General event is seamless across platforms. Exclusive to this link are:

GM21LinkKingdom4ReturnOfTheGreatGeneral: Exclusive Deep Dive into the Return of a Legend

Only available during the launch window, these shards allow you to unlock the General’s "True Form" without the standard grind.