Is it me or does it seem like its harder to get the boss. Just spent 25k stars plus all yhe divine blessings on normal and didnt get a single boss. Ive only noticed this the last few days
I haven't noticed it being any harder than normal lately, so this may just be an artifact of the randomness of the guardians. I used 13k stars about a week ago and did see 3 guardians; grabbed about 600 gems off of each before they scurried away.
Remember, even if ddddrrrr is right and there is a 17.5% chance for a guardian to appear, that does not mean that once every 6 kills a guardian will appear. Each kill is an independent event. You could get guardians after 2 kills in a row, or none for 30 kills. Even with a large reserve of stars we simply don't have a large enough sample size to draw any statistically valid conclusions; though it does sound like you had a run of pretty terrible luck.
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