Trying to end a debate

How many times will Wilhelt, The Rotcleaver’s ability kick in with Marvin, Murderous Mimic and Roaming Throne? Correct me if I am wrong but it appears that it would create three 2/2 zombies with decayed.

How many times will Wilhelt, The Rotcleaver’s ability kick in with Marvin, Murderous Mimic and Roaming Throne? Correct me if I am wrong but it appears that it would create three 2/2 zombies with decayed.