CotV and Morph

[Moxlotus]

Does a Chalice for 3 stop morph creatures from coming into play? I did a search and found a similar question (involving mana drain) but I thought this might be a little different.

[Jebus]

No.

A chalice for 0 will Counter morphs as face-down creature spells have a converted mana cost of 0.

Remember, mana cost is in the upper right corner, not what you paid for it.  No mana cost in the upper right corner of a face-down spell, so we go with 0 as with other undefined values.