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
Im hardly surprised that this has become one of the most played black cards in recent years
Investment Thesis The Celebrations set offers a unique blend of nostalgia and modern appeal, but its investment potential is limited by a high concentration of value in a single card and potential reprint risks
Its perhaps not best-suited to newcomers since it requires keeping tabs on a lot of counters (often different types), but by spending some time planning, you can create Summon creatures and keep them on the board much longer than expected, while also powering up just about everything on your board