How does King's Edict work?

King's Edict functions as follows:

Ruling: King's Edict does not target. The caster does not make any choices. Instead, each other player (your opponents) chooses a unit you don't control, and then all chosen units are killed.

Sequence of Resolution:

1. Starting with the next player in turn order, each opponent chooses one unit you don't control that has not already been chosen for this spell.
2. This continues until all opponents have made their choice.
3. All chosen units are then killed simultaneously.

Key Nuances:

• 1v1 Format: In a 1v1 game, this functions as an edict effect where your single opponent must choose and kill one of their own units.
• Multiplayer Formats: In multiplayer, multiple units will be killed (one per opponent). In a 2v2 format, this can be disadvantageous for the caster, as opponents can choose your teammate's units, effectively giving the opposing team two choices while your team only gets one.
• Protection Abilities: Because the players make the choice during resolution rather than the spell itself, units with protection from being chosen by enemy spells or abilities (such as Rune Runner) can still be chosen by King's Edict.

Source: RiftJudge FAQ #509, #322, and #8616.