Ring of the Thumb is a trinket in Basement Moon, a mod for The Binding of Isaac.
Automatically smelted when acquired.
Clearing a Boss Room drops this trinket.
In non-Boss Rooms +0.3 Fire rate.
+1 Damage.
+0.1 Shot speed.
Damaging an enemy has a 20% chance to inflict 2 Burn potency.
In Boss Rooms -0.1 Speed.
-0.5 Fire rate.
Taking penalty damage grants 8 Burn potency and 1 count.
The following special synergies and interactions for Ring of the Thumb have been documented.
| Mod | Item | Synergy |
|---|---|---|
| --- | Trinket multipliers | Also applies with the golden version. Disables automatic smelting and dropping. Non-Boss bonuses become +0.6 Fire rate, +2 Damage, +0.2 Shot speed and 3 Burn potency. Boss penalties become -0.2 Speed, -0.75 Fire rate and 12 Burn potency. With both: +0.9 Fire rate, +3 Damage, +0.3 Shot speed and 4 Burn potency; Boss penalties: -0.3 Speed, -1 Fire rate and 16 Burn potency. Burn count remains 1. |
* Note that not all possible synergies and interactions are listed here.