Why do red guardian and bwdo have the same synergy with each other?

nishant

So their synergies with each other are exactly the same with no extra benefit of the doubling effect, i mean its a unique synergy but it seems like there is a mistake.

PsyLife

It’s so that you can use the synergy on either champ no matter the rarity of the other.

Unknown

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SummonerNR

Some other pair of champs have same situation. (such as Mephisto/Morningstar??)

Since synergy does NOT extend down to all lower Star versions, it lets you get the synergy no matter which combination you have available.

5* RG with 3* BWDO, or 5* BWDO with 3* RG (for example, not sure where the Star cutoffs for that synergy is).