A blocking creature with protection from red will still die
Then youll need Elite Arcanist, allowing you to exile an instant card from your hand and copy it by paying its converted mana cost
The good news is that both BW and UW look like they are in a reasonably good position to make use of this, and when you can get some kind of ETB trigger every turn out of this, it will feel great -- especially if it involves Venturing into Dungeons
The format has so many things to love: the swings back and forth in player advantage, big splashy plays, the metagame of the politics between four players, so many potential deck themes to explore, and even the high variance between games due to a maximum of one copy of each card in the deck
Aside from being foil printings, all the most valuable cards are also borderless, with players seemingly having an affinity for the Legendary Creature/Commander cards that use plain backgrounds emblazoned with the Roman numeral for the Final Fantasy game they appear in