While discord-based decks are definitely the obvious and likely best option, another couple of things you could do would be to do some other forms of quanta denial. You could dual with darkness for pests to suck additional quanta, or dual earth for quicksands or something. Both options would be basically effective in PvP1 and would get bonus points for not being the flavor-of-the-month BH/discord, but if you're looking for grinding or best possible win rate, definitely go for one of the discord-based decks.