1: always make the HP amount divisible by 30 and make the damage amount divisible by 10.
2: use moves and resistances and stats that make sense.
3: unless using a randomizer, i dont recommend using ingredients that are polar opposites. example: apatosaurus and velociraptor.
4: every once in a while, you should try to make hybrids from ingredients that are randomized in the toolbox.
5: dont mix hybrids with hybrids. it just doesnt make sense
6: dont make things like godzilla monsters or horror creatures lol. its cringe and makes no sense.
follow these rules and you will become a great concept maker like me. ive had nearly 2 years of practice with this.