Grandma's Secret Tonic gives your critical hits a chance to create an explosion that damages nearby enemies. It also provides a bonus to your crit chance.
The explosion is a pink explosion that looks like this
How it works:
- When you land a critical hit, Grandma's Secret Tonic has a 50% chance to trigger an explosion
- The explosion occurs at the hit enemy's position
- All enemies within the explosion radius take damage
- The explosion damage is 50% of the crit damage that triggered it
Crit chance bonus:
The first copy of Grandma's Secret Tonic you pick up gives you a +2% crit chance. This is ONLY for the first copy though
Explosion damage formula:
$$
\text{ExplosionDamage} = 0.5 \times \text{CritDamage}
$$
Where CritDamage is the damage dealt by the critical hit that triggered the explosion.
Explosion radius formula:
$$
\text{Radius}(n, S) = \min\left(\max\left((3 + n) \times S,\ 1.0\right),\ 8.0\right)
$$
Where
- $ n $ = number of Grandma's Secret Tonic copies
- $ S $ = your size stat multiplier
- Radius is clamped between 1.0 (minimum) and 8.0 (maximum)
Examples at different sizes:
| Copies | Size 1.0x | Size 1.5x | Size 2.0x |
|---|
| 1 | 4.0 | 6.0 | 8.0 (capped) |
| 2 | 5.0 | 7.5 | 8.0 (capped) |
| 3 | 6.0 | 8.0 (capped) | 8.0 (capped) |
| 5 | 8.0 (capped) | 8.0 (capped) | 8.0 (capped) |
Note that size is only calculated on pickup (or when the amount changes, for instance when getting less from microwaving it.)
This could lead to a funny scenario where if you picked up 2x tonic while your size was 1.0x, and later get 2.0x size and then microwave away 1 of your grandmas tonic, it actually becomes more powerful than if you had 2.