Incorrect interaction based on rules on card.
I have noticed that when the evolved sleeper transforms into a phryexian cleric It with norn Inquisitor whose card rules say that "when a permanent you control turns into a phyrexian give it the +1/+1 counter." Based on that language, I would assume that would apply in this case.
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Rezzahan#77802 commented
"Transform" is a specific game term that means only one very specific thing: to turn a double faced card or permanent from its front face to its back face or vice versa. Nothing else is encompassed in "transform". An Evolved Sleeper turning into a Phyrexian Cleric does not transform, it merely gains creature types.
701.28a To transform a permanent, turn it over so that its other face is up. Only transforming tokens
and permanents represented by transforming double-faced cards can transform. (See rule 712,
“Double-Faced Cards.”)