Well you can fix this by: If a coin flips and shows heads with probability 0.5 and now put in the If block: Modify a variable (the selected variable) to 5 (relative)
The next rule is: If a coin flips and shows heads with probability 0.3. On the If block put Modify variable (the selected variable) Modify to 8 (relative).
That's all you are welcome for helping u