Attack Clash Mechanic
Right now there are a few cases where certain attacks will theoretically land at the same time. However, who actually hits depends on who's host. This, while consistent, is unfair as one player will be less pressured to interrupts the entire fight. A mechanic where attacks with crossing coverage (I.E. 2 attacks that hit high or low/a mid hitting attacks against anything else) clash, and cause both player's attacks to not hit (while still being able to gold link after the clash animation) would solve this issue. Additionally, if attacks do not hit the same location, both players should be hit simultaniously.