Ability reduction in bt: tech champions vs red magneto

Tei

Can somebody explain to me how “fully operational” (node) works against red magneto in BT?
The fight was new ironman V.s. Red magneto

Tei

* in BG sorry

MiniMF

absolutely bugged, made me lose a match while fihgting him with fam...

Tei

Same thing for me. Really frustrating