Easter Duche is an found in the annual event stage Spring, Sprang, Sprung. It appears in the 2nd, 4th and 6th stage with the strength magnification of 15%, 100% and 200%.
This variant of Duche has a cracked egg on his head and carrying bowl of eggs. This is probably releated to the Easter Event. Compared to Duche, it is HUGE! But he is not huge at attacking like he seems, he only have 2 knockbacks. It may be a problem for some people who hasnt have that much strong cats, but if you do it is no big deal.