Quick Scoop

To breed Rare Yool in My Singing Monsters , the main Cold Island pairing is Thumpies + Congle ; on Seasonal Shanty, guides list Yool + certain seasonal monsters as valid options. The sources I found also show that Rare Yool uses the same Cold Island breeding combo as regular Yool, and the breeding time is about 1 day, 7 hours, 45 minutes.

Breeding combo

  • Cold Island: Thumpies + Congle.
  • Some older guides say Rare Yool follows the same combo as Yool on Cold Island, which matches Thumpies + Congle.
  • Seasonal Shanty: pair Yool with seasonal monsters such as Monculus, Spurrit, Gobbleygourd, Clavavera, Ffidyll, Boo'qwurm, Viveine, Carillong, Whiz-Bang, or Jam Boree.

What to expect

  • Rare Yool is still a rare seasonal, so the result is not guaranteed and may take multiple tries.
  • One guide lists the breed time as 1 day, 7 hours, 45 minutes.

Practical tips

  • Use the best leveled monsters you have for the pairing.
  • If you are trying on Cold Island, keep using Thumpies + Congle until you get it.
  • If you are on Seasonal Shanty, use Yool + another eligible seasonal instead.

Forum-style answer

“For Cold Island, just run Thumpies and Congle for Rare Yool.”
“On Shanty, use Yool plus a seasonal monster and keep retrying if it fails.”

Bottom line: the most reliable answer is Thumpies + Congle on Cold Island.

Meta description: How to breed Rare Yool in My Singing Monsters: Cold Island combo, Seasonal Shanty options, and breeding time.