Dimension Alchemist

I hear that its quite popular in the USA, where everyone thinks its a good card, but in places like singapore its considered crap.

Lets have a look shall we.

The first effect is ridiculously crappy. Lets ignore it. The only time you would want to risk RFPing the top of your deck is if your running Necroface and you just carrier'd it.

Now, the second effect is where this card shines.

It brings back a monster from the RFP, regardless of what it is,

However, it must be destroyed by battle, the part where I think people say it sucks.

Creature swap is a card used quite often in the TCG, which allows for even more abuse of destroy by battle mechanic, but in Singapore or other places, it isnt used as often, for reasons unknown, which is why it isnt able to be abused quite as much.