Turning this around though you are more likely to play cheap low power spells in a deck if they have flashback and may be used for extra value again later
My General Tazri deck has been mostly the same since Oath of the Gatewatch , with some minor updates
This sample list that would serve as a good starting point
Razia, Boros Archangel Karametra, God of Harvests In Karametra, youre going to get lands
There's dozens of ways you can do this in Mono Green, one such way being Concordant Crossroads, Cloudstone Curio, and two mana dorks that tap for more than one green mana, like Priest of Titania and Ilysian Caryatid
If cascade allows you to cast a split card, you may cast either half but not both halves (unless the card has fuse)