One thing I will note before getting started for more experienced players I am NOT a competitive EDH (cEDH) player
Some Vintage and Legacy competitive scenes fully allow players to play with proxies because they understand that the meta evolves in a more meaningful way, or that theres going to be more competition if players can proxy fetch lands, original dual lands, or even power 9 pieces
Each player plays with a deck of 99 unique cards, led by a Legendary Creature: the Commander
With the cohesion that the Seven Dwarfs offer each other and the various buffs from items, it can be a challenging deck to master but very effective
You just have to play the card this turn and then you are good to go, Idaho
In a deck with black creatures, and especially creatures like Blood Artist, the flip could be very costly to one of your oppokn For the front card, a cheap equipment will do if all you want is to satisfy the flip condition