Speaking of the number 7, lets take a look at what made it to the number 7 spot on our list
If you can cheat him out on turn four, you can put the clock on your opponent one turn earlier, then follow it up with a Nani, Floodborn Pluto, or even your other Don Karnage on turn five
Whispers of the Muse (T1, Ext, S, Block) A favorite in "Turbo Xerox" (a blue deck which used minimal land but a ton of cantrips to thin out the deck), Counter-Phoenix (Shard Phoenix + Forbid) and Tradewind-Awakening (put Awakening on the stack, tap all your lands for mana, untap all your lands), Whispers has what might seem like a hefty price to pay for one card but you get to do it turn after turn after turn
As such, itll be tough to include every single one
$0.49 Ichor Elixir March of the Machine Commander Decks $0.49 Tellah, Great Sage Final Fantasy $0.49 Zell Dincht Final Fantasy $2.49 Inspired Tinkering Commander Legends: Battle for Baldur's Gate $0.49 Jill, Shiva's Dominant Final Fantasy $0.49 Louisoix's Sacrifice Final Fantasy $0.39 Relm's Sketching Final Fantasy $0.79 Zanarkand, Ancient Metropolis Final Fantasy $0.35 Ring of the Lucii Final Fantasy $0.49 Triple Triad Final Fantasy $0.35 Shantotto, Tactician Magician Final Fantasy $0.49 Summon: G.F