Monster enhancers on Duplicat

[Norse]

Hello!

The text on Duplicat reads "Anyone may play a Wandering Monster card on Duplicat to add another exact copy of it to combat. Monster Enhancers are also duplicated."

If I'm fighting this monster, and another person plays a '+10 to monster' on Duplicat, does that mean it counts as +20 regardless if someone has played a 'Wandering Monster' card on Duplicat, or does the "Monster Enhancers are also duplicated" only apply if someone has played a 'Wandering Monster'-card?

Thank you in advance!