Open the decklist template, either digitally or in print
Audacious SwapAudacious Swap is a more expensive, worse Chaos WarpChaos Warp that you can do twice if you sacrifice a creature, but does say "cast" instead of "put onto the battlefield", and therefore allows you to try and get a couple bites at the apple
(If it annoys you that Pact of Negation can target creature spells when Negate and Force cannot, I sympathize Pact unfortunately predates Negate, which messes up this neat bit of Magic taxonomy.) Force of Negation is effectively a compromise with players who begged for free counterspells to hamper the ultra-aggressive combo decks in Modern
Get that Dragon into the graveyard somehow
Keen-eyed brewers will note that these abilities, as well as Flubs' built-in extra-land-drop ability, point to Flubs being a commander with a particularly high power ceiling when built effectively