execute if score .difficulty_level progression matches 0 store result score .spawn boss run random value 1..3
execute if score .difficulty_level progression matches 1..4 store result score .spawn boss run random value 3..5
execute if score .difficulty_level progression matches 5 store result score .spawn boss run random value 5..7
execute if score .spawn boss matches 1.. run function main:game/mobs/ai/id/id12/25/2