So we know that when we buy an item in the shop, we can’t buy a duplicate. Pretty lame if you ask Me. So here’s how it should work.
If you have, say, a blue nicer cannon, you should be able to go to the shop to buy a blue sniper cannon, cause you haven’t bought one yet. That goes for all items.
Then, here’s the grading scale for how you can get another item in the shop.
Common
Buys. Amount
1. 5,000 gold
2. 5,000 gold plus 3 battle stars
3. 10,000 gold plus 6 battle stars
4. 10,000 gold and 9 battle stars
5. 15,000 gold and 9 battle stars
Uncommon
1. 50,0000 gold
2. 50,000 gold plus 6 stars
3. 50,000 gold plus 9 stars
4. 50,000 gold plus 12 stars
5. 50,000 gold plus 15 stars
Rare
1. 750,000 gold
2. 750,000 gold and 9 stars
3. 1,000,000 gold and 12 stars
4. 1,000,000 gold and 15 stars
5. 1,250,000 gold and 18 stars
Epic
1. 3000 pearls 12 stars
2. 3000 pearls 15 stars
3. 6500 pearls 18 stars
4. 8000 pearls 21 stars
5. 9900 pearls 24 stars
Nothing for legendary. Find somewhere else to go.