For fans of the standard TCG, and inspired by the chains signature sizzling hamburger steaks, theres Steam Knight Hamburk, a Level 8 normal monster with 2500 ATK and 200 DEF
they also count as Normal monsters in the graveyard, which the deck makes use off quite a lot
Creature flips are both the most broadly accessible, and restrictive in terms of deckbuilding, of this general gameplan while there are an absolute plethora of great options, and you nearly always have access to something available for Polymorph targeting, cutting down on creatures is a tough call, and oftentimes you'll need to truly lean into some other gameplan, as is the case with Urza in artifact-based stax, or spellslinging control
A Crossover That Will Be Hard to Top Magic: The Gathering x Final Fantasy is one of the biggest and fastest-selling sets in the Magic: The Gathering franchise in many years, and could go on to be a record setter
Also, I should note that some Sevens recipes are not actually from the Sevens game but are Go Rush-exclusive, you can recognize them by a character's final recipe not ending in "True" (that includes Mimi's only recipe, as her Sevens recipes are from her Goha outfit version)