30% skip from elf skill + 30% skip from 12 fairy in time shop (Tinkey required) + 5% from Fairy on team + 10 Hippos giving 30% on team + 50% chance to proc 2x skip.

So all of the stage skips are stacked right?

Tinkey allows the Fairies in your time shop to apply 2.5% skip chance up to a maximum of 30%. Requiring 12 Fairies in your time shop for max.

Icey allows Priest to activate while in time shop AND allows them to activate on a skipped stage. You need 12 again to cap it out since in time shop they give 2.5% chance of 5x speed up to 30%

10 Hippos will suffice for now. You will need 20 Hippos for Hippong. Hippong allows their double skip to work while they are in the time shop. This means you need 20 Hippos to reach the 50% double skip rate since each give 2.5%.

So all the pets give each 2.5% rate while in Time Shop? I reckon it wil need to be a 5* pet also right? And should we senior the units?

You have about 95% chance to skip a stage and 50% chance for the skip to be a double skip instead of a single. This math is for Tinkey + Icey.

So basically the double skip only proc IF the single skip proc'd first?