"Note: Yool can only be bred or purchased until [expiring date]. Any Yools on your Cold Island at that point will stay unless you sell them.
"Towards the end of the year, the plump and pleasant Yool schedules a relaxing sojourn on Cold Island. Its arrival is heralded by the jingle bells dangling from its antlers, and the booming resonance of its voice. Just being near a Yool produces feelings of peace and joy, so the other monsters always try and convince him to stay the whole year round."
The Yool sings "Ho Ho Ho Ho" in a resonating baritone voice, and also shakes its head quickly to jingle the bells on its antlers.
The Yool Monster can only be bred for a limited time during the Christmas season. Possible combination(s):
For 2012, the breeding began on December 5th and ended on December 26.
Earning rate is in coins per minute.
|Level||0% Happiness||25% Happiness||50% Happiness||75% Happiness||100% Happiness|
Each monster has a limit to how much income it can hold at a time. Increasing the monster's level increases the limit.
Each monster needs to be fed four times before it reaches the next level. Increasing the monster's level increases the coins earned per minute, as well as the maximum coins earned.
|Level||Food Per Feeding||Total Food Needed Per Level|
Every monster has different things that they like. For every unique object that they like that's placed near the monster, the monster's happiness will increase by 25% (in other words, placing two of the same liked item near a monster will still only increase happiness by 25%).
Some items to take into consideration when designing your island by strategy are number of beds for the monster, rate of income per bed, max income per bed, and time for max income to be reached. The income below is for level 15:
|Number of Beds||1|
|Rate of Income High||168|
|Rate of Income Low||84|
|Rate of Income per Bed High||168|
|Rate of Income per Bed Low||84|
|Max Income per Bed||34,272|
|Time to Max Income @ High||3:24 hours|
|Time to Max Income @ Low||6:48 hours|
The Yool monster is the second limited monster to be introduced to the game and appeared in the Market on December 5, 2012. It was initially available until 12:00 am EDT, December 26, 2012, but was extended until January 2, 2013.
The Yool made an unofficial appearance in the Market during the Easter 2013 celebration, where it was available for purchase but without confirmation of successful breeding attempts. Officially, the Yool returned out of season with fanfare from April 30 until May 7, 2013 at noon ET. Confirmed to be available by breeding or purchase with diamonds (at an inflated price of 225).
The name "Yool" may come from the old word for Christmas.