Patriar's Humiliation
Patriar's Humiliation does not work on Circle of the Moon Druid despite the text turning grey after use.
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Shammas#10265 commented
During a game, my opponent had 3 creatures and I played a Circle of the Moon Druid "Bear Form — As long as it's your turn, Circle of the Moon Druid is a Bear with base power and toughness 4/2. (It loses all other creature types.)"
My opponent played a Patriar's Humiliation "Target creature perpetually loses all abilities, then Patriar's Humiliation deals damage to it equal to the number of creatures you control" which resulted in my Circle of the Moon Druid dying.
I believe this is incorrect because Patriar's Humiliation removes the ability that makes Circle of the moon Druid a 4/2, and it should have reverted back to being a 2/4 and not died when the spell dealt 3 damage to it.