With 2 4* scrolls you might want to build a t1 attacker... i would choose twins but all are good. yuri is your only usable attacker at the moment. That or selene/celene as suggested.
can you suggest me how to use attacker? i feel like attacker are useless for me because they have very low hp i put my defender in front line and heal with healer and when i need damage(mostly because pvp) i use bomber
If you think attackers are useless due to low hp, then you never got that far in stage difficulty...
Tanks have low attack and slow speed that translates in low dps. You'll understand the importance of dps when you'll realize that enemy will outrun you in health retention, or that you will always run out of time or you will not build rage fast enough to successfully obliterate the enemy.
many people say geranium are op and better than selene also audrey can pair with him it true or not? accually i have only 1 select ticket but a plan to get second from story but episode 14 are so hard for me may be because i don't have good attacker?)
Everyone has their own way to use atker . From my opinion, your atker trans is only 0 or 1. So if you up for challenge stage, such as story, its better to have a tank and use atker when you have enough rage. In long term, fight has time limit so have all atker will help thing go faster. For now from your current team, I suggest few point for your atker: - 5* Bibi and Hermes. Bibi max her 3rd and 5th skill, Hermes 3rd, 5th, 2nd, 1st, 4th go with that order. - Give Bibi all atk gem, and Hermes 4 spd gem and 2 atk. - Bibi 5th skill will reduce def while she on frontline, after 4 def down, use your best atker skill and feel the wonder. If you have enough rage, you can use Hermes to take down another def % then use bomber (I rarely use this unless up against tanker). - Use atker has better advantage than bomber (personally) since they need only 3 rage while the effective is quite ok. I almost never use bomber in pvp, mostly use it to tank other atker skill.
Answer for your 2nd question. Its depend on how you use them - Gera is op cos of his perm bleed make other only heal half of their power and force switch + stun (Can easily counter by putting Kain or Bibi on first hunter or just have Teresa or Selene in your team) - Audrey is pretty normal, except her 4th skill fixed dmg which cause exactly the dmg regardless def (active chance not very high), and prevent switch. (Can be counter with a high hp non-ice tank, like Kain, just T3 him can help you withstand 2-3 Audrey fixed dmg) - Selene is like Patrone, she give out maximize dmg with her 1st and 4th skill while 2nd skill is DoT. Not to mention +1 rage after use make her only need 3 rage. Her 5th skill is a wonder if you use element against each other.