I know it's not for everyone, but if you like powerful rares, there are some rad ones like Cool but Rude, The Ooze, and Splinter's Technique
Most of the decks that consider including colourless manlands like Mishra's Factory are those that have a high count of small dorks
It's worth bearing in mind that none of these decks are likely to hold up against a custom-constructed deck - there are way more powerful deck lists floating around the Disney Lorcana meta right now
"Y'know, I could probably put together an LGS [local game store] table battlefield really quick
Wee can also dish out major damage ourselves with the cards Relic Amulet, The Filigree Sylex, and Sphinx-Bone Wand, which we can target Dralnu with once we've given him away
If the target creature is an illegal target as Nibelheim Aflame tries to resolve, it won't resolve and none of its effects will happen