There are several weapons in that game that are unique. Invariably these weapons start out rather weak, are expensive to upgrade, but are among the most powerful when fully upgraded.
Dragon Breaker[]
The Dragon Breaker set of swords can be acquired for free (?) or when defeating the Green Dragon (?).
| Tier | Overall Value |
Attack | Thunder | Poison | Fire | Ice | Other | Upgrade Cost |
Upgrade Chance |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 17 | 9 | 3 | - | 3 | 2 | - | 20  709 silver |
70% |
| 2 | 17 | 90 | 3 | - | 3 | 2 | - | 50  1,418 silver |
60% |
General's Spear[]
The General's Spear can be acquired in the Boss Rush levels.
| Tier | Overall Value |
Attack | Thunder | Poison | Fire | Ice | Other | Upgrade Cost |
Upgrade Chance |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 69 | 9 | 20 | 20 | 20 | - | - | 20 709 silver |
70% |