Let’s check out the effect of Insectoid synergy first: When there are duplicate non-Insectoid allied pieces on the chessboard and one of them dies, summons a random insectoid piece based on the highest cost among the alive duplicates.

According to this synergy message, we can know the following key points:

1. "Non-Insectoid ally pieces" means that Insectoid chess pieces will not benefit from the corresponding synergy.

2. "Duplicate ally chess piece" means that there must be at least two chess pieces with the same name (can be at a different level) to trigger the synergy.

3. "The highest cost among the alive duplicates" means that an insectoid piece will be summoned according to the cost of the alive ones (the one who costs most countered).