Zed bugged blademaster synergy

I know Zed sometimes double counts attributes with spat items ie (Soraka + zed w/light = 3 light). This is the first time I've seen synergy come on without a spat item on Zed ex (Yi + Zed = Blademaster).

As a note, i did put in a Yasuo for Blademaster and Cloud but replaced him with Zed when I rolled him. As a check, I added Yasuo with Zed and Yi on board and it came up as 3 Blademaster.