Level 5 items, as I call them, are really powerful, but this one is really overpowered, overdone. Seriously, 989 for the starting ATK stat? This item is way, way more than anything else I have. What's more is that, though unseen, this is the third level 5 arm item. That means that I can also form the level 6 item (something yet to be seen in the very near future). The upcoming level 6 item will be even stronger than this. I could run through EX Advanced with all burst equipment with +6 enemy boosting and not have much trouble. This short video shows what went into making this level 5. It takes 3 level 4 items to form a single level 5. It takes 3 level 3 items to form a single level 4. It takes 3 level 2 items to form a single level 3. It takes 3 level 1 items to form a single level 2. The level 1 items are being feed 2 boosters (since they're rank 4 instead of 5) to make them stronger than usual. That's a huge number of items!