First samui give chakra from standard atks not chase, secondly Ay 3rd gain/lose buffs as chakra get high (through chakra generating ninjas and rounds) or low (using mystery skills and chakra stealing ninjas) the maximum amount you would have guessed is the maximum chakra one can get in a particular round which is 100, so he can have +100% atk/nin and +200% def at most.

I think you missed my post #10 where i explained how his passive work...

I watched 4 different youtube videos from various ppl drawing 210 seals in the new lightning treasure, 3 of them got their first rare in 40 pulls (one from germany i think got it from 30) the next rare will come in the next 60/70 (in both cases you have 2 rares at 100 pulls total) the 3rd rare comes out after another 60/70 and in all 4 videos ay 3rd comes out at exactly 210 seals.

There are 6 uncommon 10 pull ninjas, all 2 stars except kakashi [beheading sword] which is 3 stars, this is the full list:

Uncommon: (10 seals)

- Temari GNW 2*

- Sai GNW 2*

- Hinata GNW 2*

- Kankuro GNW 2*

- Ten Ten GNW 2*

- Kakashi [Beheading Sword] 3*

Rare: (40-70 seals)

- Omoi 3*

- Samui 3*

Super rare: (210 seals)

- Ay 3rd 3*