Try to read everything, as I explained base damage is 61, now look at the right there it says boost +5,
So if nothing has changed since I went to school that makes 66
Now look at second screenshot the second enemy left there it says 61 damage
Except that the +5 boost applies to the amount of gems created. NOT damage. So the +5 boost means that 19 gems are created instead of the base of 14 gems created. Therefore, not a bug.
Three separate things are happening when you cast Gobtruffle’s spell. Each thing is contained within it’s own sentence.
1 - Deal 61 damage to all damage.
2 - Create a mix of 14 green and brown gems, boosted by poisoned and diseased enemies. (emphasis mine)
3 - Gain an extra turn.
Only that second one is boosted and involves the boost ratio in the corner. Damage was never boosted in this spell.
Whenever a spell has boosted by in the description it’s not necessarily the damage that gets boosted. It’s whatever is in the same sentence as boosted by.