All players roll Initiative as normal, and add any modifiers.

Any tie is broken by a 1d1000.

Players are then ranked in DESC order.

Then the highest non-player CR creature rolls Initiative.

If the highest CR creature rolls, if it scores beats the players, it goes first, if not, the player with the highest Initiative goes first.

Ties are broken by the 1d1000 roll.

Then based on the order of CR, the Initiative alternates between creature and player.

Any creature with a Summon attached goes LAST in the Initiative count and is alternating. -

Dev Note: This system primarily improves combat balance by significantly reducing variance. It helps prevent one-sided turns where either monsters or players act first and overwhelm a creature in a single round.