Fastest player puts their barrier up last in current mechanics. I think rather you change standard attack to "Create Barrier - Deep Forest Creation. If Barrier is already in effect, then standard becomes..." I would also make the healing effect from the barrier global (effects all teams).

Another change I would make is to other passive, "At start of round Yamoto has a fixed chance to get Chaos. If this affect happens 3 random opponents will also receive Chaos."