Those don't have to be the same three permanents each time
If you do, search your library for a planeswalker card, put it onto the battlefield, then shuffle your library
As you calculate, keep an eye on your opponent's Life, your own Life, the presence of opposing Blockers, and how many Characters you have, and use whichever the situation calls for.
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
Number 4: Saw (2004) Saw (2004) Wizards of the Coast had a field day with this movie, as they referenced the theme on multiple cards
Edgar Markov decks are flexible because of its Eminence ability, so protecting the Vampire Knight isn't necessarily as vital as with other Commander strategies