Yep, it's a little hard card to understand at first, but once you get how it works and how to find what you were searching for, it turns out to be one of the best cards in the game.
you should go into solo mode or try another simulator and just try using small world. once you tried it a couple of times you will understand it better. also once you understood small world you will realize that its especially good and easy to use in vs. most important lines are the ones that lead to razen (any monster will get you razen). very rarely you also can search borger/jiaolong/ash/maxxc/whatever you need
Only if you have the right extra deck cards. If you don't, or you're not used to playing VS, then it's better to stick to learning the main deck combo lines and use Dust Devil
