Before we get too deep into all this info, lets take a look at the lands in question, shall we
This nasty monster here is a perfect example of that
The monster remains hidden until you tilt the card side to side
But then you think how funny it would have been to laugh then, and you almost laugh a much bigger laugh, and then you hold it in, and this repeats until you have this giant laugh you cant hold in thats significantly worse than the first one, thereby completing the Giggle Loop.) So, having just essentially Giggle Looped on my Dentists chair in the middle of dental work was, to say the least, something I still find funny
There are 26 in total: Poliwag Poliwhirl Politoed Horsea Seadra Kingdra ex Magikarp Gyarados Totodile Croconaw Feraligatr Marill Azumarill Wooper Quagsire Qwilfish Corsola Remoraid Octillery Delibird Mantine Suicune Corphish Crawdaunt Ducklett Swanna These are all the Electric-type Pokmon cards in Wisdom of Sea and Sky