How many time need to make like this game by unity?

http://apps.facebook.com/warstorm/?ref=ts

This is 2D TCG game.
Made by Flash.

Then,

How many time will need to make 2D game like above one by unity engine?

Assumption - Manpower is 3 developers, 1 design, 1 programmer, 1 artist. And make from scratch but know well each part and experience of 1~2 years.

Thanks.

Depends on the quality of the team (in relation to the Unity framework/editor/language).

let’s say teams are intermediate quality grade.

it’s really guessing…
i’d say a week or two.