First, while the Fabled set will include several new cards, it will also feature a bevy of reprints of cards featured in the first four chapters of the game (The First Chapter, Rise of the Floodborn, Into the Inklands, and Ursulas Return)
But situations like that arent going to happen often enough for this to be better than mediocre
In that case, the commander remains in exile and will be put onto the battlefield when Karn's ability finishes resolving
If you have excess mana, you can Fling both the Plant and the Thrillseeker, re-cast the Thrillseeker, and fling something else
Any cards in these decklists denoted with an A- at the front of their name are Alchemy rebalanced versions of those cards ( these will add the normal version of that card to your collection )
At the beginning of combat on your turn, mill two cards