Vivian WILL destroy your shield, no questions asked. But you have the AoE advantage. Get in there and aim for her feet if she has her deflector shield up. You can hold out for longer than you think if she doesn’t have her sentinels up.
The best way to deal with a Zhin trying to kill you is to play your deck with full life steal and use Jenos Luminary Legendary Card, this will get you a lot more of damage to make him use his billow and counter early, and you'll win 4/5 times
Tyra will have no chance if she faces 1 to 1 zhin, tyra can take advantage of her incendiary grenade to weaken the zhin counterattack and wait for her skill to be spent, then attack as quickly as possible.
Zhin in one-on-one with Jenos will always be victorious, but if Jenos is with an ally nearby, Jenos will disqualify him with his empty grip and expose him to the damage of his allies.
If you play with zhin, it is advisable not to approach more than 20 feet from torvald, the greatest weakness that zhin can have is to be annulled and unable to escape.