Use Deadwoods calculator, this link is specifically for Tower/Skull combo

https://www.deadwoodjedi.com/speed-tunes-4/Fast-Skullcrusher-and-Tower-with-43-Champ

If you have two champions with 2 turn unkillable/block damage, why are you trying to bring in Pain Keeper?

There's also a couple of guides that specifically have just Maneater and Tower

https://www.deadwoodjedi.com/speed-tunes-4/Maneater-and-Tower-or-Santa

https://www.deadwoodjedi.com/speed-tunes-4/ManTower

Thank  you  dor  the  calculator.

I  bring  Pain  Keeper  because  it  doesn'lt  work  for  me  so  I  tryied  something  else.

Go to deadwoodjedi

If u have maneater AND tower PK should be unneccesary. 

If u dont wanna loose keys: when u see the buffs arent on when CB attacks: instant quit game which will give you key back. 

U will need to speedtune, and u will need to set up the beginning, but Tower and ME should make u survive untill turn 50. with your champs u should 3 key at minimum,, ,and 2 key should be possible imo as well

Well  it  is  not  for  Tower  and  Manester,  but  Tower  and  Skullcrusher

yes sorry my bad

As others have mentioned, you shouldn't need to use pain keeper.  Infact, unless you are going for some budget unkillable team with just Maneater I would specifically recommend not bringing her.  The reasons being:

• Her A3 reduces the cooldown of all skills so you will have to factor this into the speed tune to make sure Maneater and Tower do not use their skills too early.  This means slowing the team down dramatically, which reduces the damage output
• By building a team that relies on her A3, you will then have 3 champions that you need to avoid stun on (Maneater and Tower being the other 2).  This increases the risk of runs messing up if CB targets the wrong champ, and also removes a slot to bring a potential debuff blocker
• Simply put, she doesn't bring anything else to the table.  By using just Maneater and Tower for an unkillable speed tune it allows for 3 spare slots to bring in champions that provide other useful skills, such as debuff blocker, weaken, 60% def down, 50% attack up, 60% def up (if you have any champs with damage based on defense), HP burn and poison
• Finally, to a lesser extent her A1 actually increases her turn meter slightly, so it can further add to the punish of speed tuning

Overall, you are much better off by pushing to get a tune that doesn't need her in this team

Make  sure  to  check  TRUE  speed,  sometimes  that  will  be  off  due  to  Auras,  Sets,  or  Masteries  and  can  make  a  bug  difference.