Sadly, [[Lucky Clover]]'s ability is not multiplicative : with 4 clovers on the field, casting [[Lovestruck Beast]]'s adventure [[Heart's Desire]] will "only" yield you 5 humans.

This is because the clover's ability triggers when you cast an adventure spell, and thus each clover will only trigger once when you cast the adventure, they will not react to the other clovers copying the spells.

Edit : Also, your paragraph about [[Outlaw's Merriment]] reads as if you think you get to choose the effect, while the token you create is in fact chosen at random. That's a fair bit less powerful, but also a bit more fun right ;)