Which tank has the most expensive ultimate?

Tanks only. Mana costs at rank 1. Champions who pay with anything else are left out.

• 1

  Alistar Unbreakable WillR

  100
• 2

  Amumu Curse of the Sad MummyR

  100
• 3

  Blitzcrank Static FieldR

  100
• 4

  Braum Glacial FissureR

  100
• 5

  Cho'Gath FeastR

  100
• 6

  Galio Hero's EntranceR

  100
• 7

  K'Sante All OutR

  100
• 8

  Leona Solar FlareR

  100
• 9

  Malphite Unstoppable ForceR

  100
• 10

  Maokai Nature's GraspR

  100
• 11

  Nautilus Depth ChargeR

  100
• 12

  Nunu & Willump Absolute ZeroR

  100
• 13

  Ornn Call of the Forge GodR

  100
• 14

  Poppy Keeper's VerdictR

  100
• 15

  Rammus Soaring SlamR

  100
• 16

  Rell Magnet StormR

  100
• 17

  Sejuani Glacial PrisonR

  100
• 18

  Singed Insanity PotionR

  100
• 19

  Sion Unstoppable OnslaughtR

  100
• 20

  Skarner ImpaleR

  100
• 21

  Tahm Kench DevourR

  100