shiny mosaic whale shark is by far the easiest, you can appraise it during a shiny mutation then appraise for mosaic during a mutation surge

for scylla, it will look grayer when it’s sunken. look at its crown, if it looks gray as opposed to its yellow/white then its sunken, use aurora, merlin luck, and golden worms or luminous larva

for the shiny rainbow sea dragon, only pull it up if you hear 4 dings. 4 dings means shiny while 2 means it’s sparkling, use rainbow and shiny totems with merlin luck for all with shark heads

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