The wording of Exeggcute's "Multiply" attack is a little ambiguous. Does it mean you can only search for one Exeggcute, or as many Exeggcute as you want?
Just one.
Source:
Forbidden Light FAQ (2018-04-20), TPCi Rules Team (2018-05-03)
Relevant cards
Note: All applicable cards may not be listed below.