The first opponent had some... questionable play... I mean, they could've used Suzaka Gouzen's 2nd to hit Kohaku, forcing him a turn, thus ending his field faster. But for some reason, they had Suzaka auto-attacking and using 3rd instead smh.
Yaobikuni uses a divination sigil to protect an ally for 1 turn. When the protected ally takes a direct single target attack or indirect damage, 50% of the damage is reflected It her skill