Guys, its a quickplay poly. It doesnt mean u can randomly use any monster. The fusion material must be the correct one. If it was a fusion substitute such as Dark hex sealed fusion, then it should work. Ex: u can use blazeman and dark hex sealed fusion in the battle phase using this card to summon Red-eyes slash.
Why can't I Fusion Summon Gatling Dragon with any 2 monsters on the field with my Flash Fusion? Shouldn't I be able to summon any Fusion monster that can be special summoned with Flash Fusion if I have enough monster cards on the field?
The monsters on the field still has to match the requirements for the fusion monster you're trying to summon you moronic retard. flash fusion never said that you can just fusion anything you want.
Maybe one day konami will make a fusion card that caters to your brain-dead "logic".
of course polymerization is way better than this card since it can only fusion monster when its on the field. But the best use of this card is after you attack two monster chain this card to fusion them to get additional attack since its a quick play card. But chances to have the two fusion materials on the field is relatively LOW!!