It was a classic sacrifice deck that leaned on Cartel Aristocrat and Falkenrath Aristocrat chewing up cards like Doomed Traveler, tokens from Lingering Souls, and the occasional stolen creature from Zealous Conscripts to fuel them and enable Skirsdag High Priest
This is the rare Red Cheeks variant, of which the productions were quickly stopped to replace it with the Yellow Cheeks variant (shown below)
Then, all players who chose to do so shuffle their hands and graveyards into their libraries and draw seven cards
The problem is that this is an incredibly inviting card draw card for creature beatdown decks
Otherwise, while a split card is on the stack, its mana value is determined by the mana cost of the half that was chosen to be cast
Oswald Fiddlebender Its my understanding that Oswald Fiddlebender is a cEDH-viable commander, but not being too familiar with the highly competitive side of Commander, Im going to ignore that aspect of the card