han removes the critical bonus and the immunity to debuffs lightning armor gives (so you can chaos, blind or immobile the MB after it for example) but don't remove the 3 standard attack because the mystery actually modifies the first basic standard attack of MB to make it a triple standard (is so also with Ay's lightning armor and his 4 standards).

Anyways, without the buffs, those standards are pretty weak. With 78k power in the han, roshi, sailor sakura, azure fang lineup i endure easily 100-110k lightning blitz teams with him.