Guys, I'm having second thoughts about upgrading my Guy [Gate of Joy] to Guy [Gate of Shock]

Not only does the mystery change, but so does his passive, which I feel is somewhat of a nerf and a buff at the same time.

Gate of Joy's mystery ignores super armor causing knockdown and dealing 20% of his life as damage to himself in the process.

Gate of Joy's passive increases Combo and Attack rate of all Konoha Ninjas while he is on the field by 20%.

These seem to pretty good. Some ninjas have a super armor that is a problem somewhat. Then his Passive seems to be really great. Meanwhile...

Gate of Shock Mystery is basically normal Guy's mystery Dynamic Entry. Then his passive just becomes a leech :L

I Feel this is a huge downgrade. But I want people's opinions on the matter when comparing the 2. I mean yes 4 star ninja has better stats than 3 star. But is it really that worth it?