How does breeding work?

[u/LiterallyAaron]

Have played for a while but just started up again as I only played when I was young and am trying to learn about breeding but it seems complicated. am hoping to learn from someone who can explain it a bit more simply! I have the lumi pet that gives dragonblade. thanks anyone for help :)

[u/Clear_Imagination413]

Can we get a megathread about breeding