In three-plus-color decks, you'll almost never or rarely play all MDFCs and should pick and choose MDFCs from the "always play" category that are most impactful and best support the theme of your deck, rather than just running them all
With that in mind, how about we take a look at two new decks that are able to get massive mileage out of Leafeon VSTAR
Mega Lopunny ex Deck Card List Promo-A Pok Ball x2 Professors Research x2 Red Card x1 Spacetime Smackdown (A2) Cyrus x2 (Palkia Pack) Giant Cape x2 (Dialga Pack) Lucario x2 (Dialga Pack) Riolu x2 (Dialga Pack) Wisdom of Sky and Sea (A4) Hitmontop x1 Mega Rising (B1) Copycat x1 (Mega Gyardos Pack) Crimson Blaze (B1a) Buneary x2 Mega Lopunny ex x2 Serena x1 Best Budget Pokmon TCG Pocket Fighting Deck: Donphan ex It might not look like Donphan ex does much damage at first glance, because its Gigantic Press move only deals 50 HP of damage by default
I used those to narrow the field down to sixteen contestants, then down to eight from there
Special Summon any number of "Ninja" monsters from your Deck, in face-up Attack Position and/or face-down Defense Position, with combined Levels less than or equal to the Level of the Tributed monster