These regulations can vary widely from one country to another and can have a significant impact on your import process. The first step is to research the specific regulations of the country where you'll be importing the cases
These include creatures that generate additional creature tokens (Blade Splicer, Darksteel Splicer, Defiler of Faith, Phyrexian Triniform, Ria Ivor), buff/anthem effects (Defiler of Flesh, Grafted Butcher), Incubate (Essence of Orthodoxy, Progenitor Exarch), reanimate (Phyrexian Delver, Sheoldred), removal (Sheoldred), drain (Elas Il-Kor), and many more
You will still have to flip for the other activations
I have ruminated on this issue for nearly as long as I have been playing Magic, but Gaby Spartzs April 7 article 6 Things You Can Do to Get More Women in Magic on Channel Fireball motivated me to finally organize and articulate my many thoughts on this topic